// Common javascript functions
//
// webtrees: Web based Family History software
// Copyright (C) 2014 webtrees development team.
//
// Derived from PhpGedView
// Copyright (C) 2002 to 2009 PGV Development Team.  All rights reserved.
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 2 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA

// Specifications for various types of popup edit window.
// Choose positions to center in the smallest (1000x800) target screen
var edit_window_specs='width=650,height=600,left=175,top=100,resizable=1,scrollbars=1'; // edit_interface.php, add_media.php, gedrecord.php
var indx_window_specs='width=600,height=500,left=200,top=150,resizable=1,scrollbars=1'; // index_edit.php, module configuration
var news_window_specs='width=740,height=650,left=200,top=150,resizable=1,scrollbars=1'; // edit_news.php
var help_window_specs='width=500,height=400,left=250,top=200,resizable=1,scrollbars=1'; // help.php
var find_window_specs='width=550,height=600,left=250,top=150,resizable=1,scrollbars=1'; // find.php, inverse_link.php
var mesg_window_specs='width=500,height=600,left=250,top=100,resizable=1,scrollbars=1'; // message.php
var chan_window_specs='width=500,height=600,left=250,top=100,resizable=1,scrollbars=1'; // edit_changes.php
var mord_window_specs='width=500,height=600,left=250,top=100,resizable=1,scrollbars=1'; // edit_interface.php, media reorder
var assist_window_specs='width=900,height=800,left=70,top=70,resizable=1,scrollbars=1'; // edit_interface.php, used for census assistant
var gmap_window_specs='width=650,height=600,left=200,top=150,resizable=1,scrollbars=1'; // googlemap module place editing
var fam_nav_specs='width=300,height=600,left=817,top=150,resizable=1,scrollbars=1'; // media_0_inverselink.php

// TODO: This function loads help_text.php twice.  It should only load it once.
function helpDialog(which, mod) {
	var url='help_text.php?help='+which+'&mod='+mod;
	dialog=jQuery('<div></div>')
		.load(url+' .helpcontent')
		.dialog({
			modal: true,
			width: 500,
			closeText: ""
		});
	jQuery(".ui-widget-overlay").on("click", function () {
		jQuery("div:ui-dialog:visible").dialog("close");
	});
	jQuery('.ui-dialog-title').load(url+' .helpheader');
	return false;
}

// Create a modal dialog, fetching the contents from a URL
function modalDialog(url, title) {
	jQuery(document).ajaxComplete(function() {
		jQuery('.ui-dialog').before('<div class="ui-widget-overlay" />');
	});
	dialog=jQuery('<div title="'+title+'"></div>')
		.load(url)
		.dialog({
			modal: false,
			width: 700,
			closeText: "",
			close: function(event, ui) {
				jQuery(this).remove();
				jQuery('.ui-widget-overlay').remove();
			}
		});
	// Close the window when we click outside it.
	jQuery(".ui-widget-overlay").on("click", function () {
		jQuery("div:ui-dialog:visible").dialog("close");
		jQuery(this).remove();
	});
	return false;
}

// Create a modal dialog to display notes
function modalNotes(content, title) {
	dialog=jQuery('<div title="'+title+'"></div>')
		.html(content)
		.dialog({
			modal: true,
			width: 500,
			closeText: "",
			close: function(event, ui) { jQuery(this).remove(); }
		});
	// Close the window when we click outside it.
	jQuery(".ui-widget-overlay").on("click", function () {
		jQuery("div:ui-dialog:visible").dialog("close");
	});
	return false;
}

// For a dialog containing a form, submit the form via AJAX
// (to save the data), then reload the page (to display it).
function modalDialogSubmitAjax(form) {
	jQuery.ajax({
		type:    'POST',
		url:     jQuery(form).attr('action'),
		data:    jQuery(form).serialize(),
		success: function(response) { window.location.reload(); }
	});
	return false;
}

function closePopupAndReloadParent(url) {
	if (parent.opener) {
		if (!url) {
			parent.opener.location.reload();
		} else {
			parent.opener.location=url;
		}
	}
	window.close();
}

// variables to hold mouse x-y pos.s
	var msX = 0;
	var msY = 0;

//  the following javascript function is for the positioning and hide/show of
//  DIV layers used in the display of the pedigree chart.
function MM_showHideLayers() { //v6.0
	var i,p,v,obj,args=MM_showHideLayers.arguments;
	for (i=0; i<(args.length-3); i+=4) {
		if ((obj=document.getElementById(args[i])) !== null) {
			if (obj.style) {
				div=obj; // unused?
				obj=obj.style;
			}
			v=args[i+2];
			if (v=='toggle') {
				if (obj.visibility.indexOf('hid')!=-1) {
					v='show';
				} else {
					v='hide';
				}
			}
			v=(v=='show')?'visible':(v=='hide')?'hidden':v;
			obj.visibility=v;
			if (args[i+1]=='followmouse') {
				var pobj = document.getElementById(args[i+3]);
				if (pobj !== null) {
					if (pobj.style.top!="auto" && args[i+3]!="relatives") {
						obj.top=5+msY-parseInt(pobj.style.top)+'px';
						if (textDirection=="ltr") obj.left=5+msX-parseInt(pobj.style.left)+'px';
						if (textDirection=="rtl") obj.right=5+msX-parseInt(pobj.style.right)+'px';
					} else {
						obj.top="auto";
						var pagewidth = document.documentElement.offsetWidth+document.documentElement.scrollLeft;
						if (textDirection=="rtl") pagewidth -= document.documentElement.scrollLeft;
						if (msX > pagewidth-160) msX = msX-150-pobj.offsetLeft;
						var contentdiv = document.getElementById("content");
						msX = msX - contentdiv.offsetLeft;
						if (textDirection=="ltr") obj.left=(5+msX)+'px';
						obj.zIndex=1000;
					}
				} else {
					var Xadjust;
					if (WT_SCRIPT_NAME.indexOf("fanchart")>0) {
						obj.top=(msY-20)+'px';
						obj.left=(msX-20)+'px';
					} else if (WT_SCRIPT_NAME.indexOf("index.php")==-1) {
						Xadjust = document.getElementById('content').offsetLeft;
						obj.left=(5+(msX-Xadjust))+'px';
						obj.top="auto";
					} else {
						Xadjust = document.getElementById('content').offsetLeft;
						obj.top=(msY-50)+'px';
						obj.left=(10+(msX-Xadjust))+'px';
					}
					obj.zIndex=1000;
				}
			}
		}
	}
}

var show = false;
	function togglechildrenbox(pid) {
		if (!pid) pid='';
		else pid = '.'+pid;
		if (show) {
			MM_showHideLayers('childbox'+pid, ' ', 'hide',' ');
			show=false;
		} else {
			MM_showHideLayers('childbox'+pid, ' ', 'show', ' ');
			show=true;
		}
		return false;
	}

	var lastfamilybox = "";
	var popupopen = 0;
	function show_family_box(boxid, pboxid) {
		popupopen = 1;
		lastfamilybox=boxid;
		if (pboxid=='relatives') MM_showHideLayers('I'+boxid+'links', 'followmouse', 'show',''+pboxid);
		else {
			famlinks = document.getElementById("I"+boxid+"links");
			divbox = document.getElementById("out-"+boxid);
			parentbox = document.getElementById("box"+boxid);
			if (famlinks && divbox && parentbox) {
				famlinks.style.top = "0px";
				if (textDirection=="ltr") famleft = parseInt(divbox.style.width)+15;
				else famleft = 0;
				if (isNaN(famleft)) {
					famleft = 0;
					famlinks.style.top = parentbox.offsetTop+"px";
				}
				pagewidth = document.documentElement.offsetWidth+document.documentElement.scrollLeft;
				if (textDirection=="rtl") pagewidth -= document.documentElement.scrollLeft;
				if (famleft+parseInt(parentbox.style.left) > pagewidth-100) famleft=25;
				famlinks.style.left = famleft + "px";
				if (WT_SCRIPT_NAME.indexOf("index.php")!=-1) famlinks.style.left = "100%";
				MM_showHideLayers('I'+boxid+'links', ' ', 'show',''+pboxid);
				return;
			}
			MM_showHideLayers('I'+boxid+'links', 'followmouse', 'show',''+pboxid);
		}
	}

	function hide_family_box(boxid) {
		MM_showHideLayers('I'+boxid+'links', '', 'hide','');
		popupopen = 0;
		lastfamilybox="";
	}

	var timeouts = [];
	function family_box_timeout(boxid) {
		timeouts[boxid] = setTimeout("hide_family_box('"+boxid+"')", 2500);
	}

	function clear_family_box_timeout(boxid) {
		clearTimeout(timeouts[boxid]);
	}

	function expand_layer(sid) {
		if (jQuery("#"+sid+"_img").hasClass("icon-plus")) {
			jQuery('#'+sid+"_img").removeClass("icon-plus").addClass("icon-minus");
			jQuery('#'+sid).slideDown("fast");
		} else {
			jQuery('#'+sid+"_img").removeClass("icon-minus").addClass("icon-plus");
			jQuery('#'+sid).slideUp("fast");
		}
		return false;
	}

// Open the "edit interface" popup window
function edit_interface(params, windowspecs, pastefield) {
	var features = windowspecs || edit_window_specs;
	var url = 'edit_interface.php?' + jQuery.param(params) + '&ged=' + WT_GEDCOM;
	window.open(url, '_blank', features);
	return false;
}

function edit_record(xref, fact_id) {
	return edit_interface({
		"action":    "edit",
		"xref":      xref,
		"fact_id":   fact_id
	});
}

function add_fact(xref, fact) {
	return edit_interface({
		"action": "add",
		"xref":   xref,
		"fact":   fact
	});
}

function edit_raw(xref) {
	return edit_interface({
		"action": "editraw",
		"xref":   xref
	});
}

function edit_note(xref) {
	return edit_interface({
		"action": "editnote",
		"xref":   xref
	});
}

function add_record(xref, fact_field) {
	var fact = jQuery('#' + fact_field).val();
	if (fact) {
		if (fact == "OBJE") {
			window.open('addmedia.php?action=showmediaform&linkid=' + encodeURIComponent(xref) + '&ged=' + encodeURIComponent(WT_GEDCOM), '_blank', edit_window_specs);
		} else {
			return add_fact(xref, fact);
		}
	}
	return false;
}

function reorder_media(xref) {
	return edit_interface({
		"action": "reorder_media",
		"xref":   xref
	}, mord_window_specs);
}

function add_new_record(xref, fact) {
	return edit_interface({
		"action": "add",
		"xref":   xref,
		"fact":   fact
	});
}

// Add a new child to an existing family
function add_child_to_family(xref, gender) {
	return edit_interface({
		"action": "add_child_to_family",
		"gender": gender,
		"xref":   xref
	});
}

// Add a new child to an existing individual (creating a one-parent family)
function add_child_to_individual(xref, gender) {
	return edit_interface({
		"action": "add_child_to_individual",
		"gender": gender,
		"xref":   xref
	});
}

// Add a new parent to an existing individual (creating a one-parent family)
function add_parent_to_individual(xref, gender) {
	return edit_interface({
		"action": "add_parent_to_individual",
		"xref":   xref,
		"gender": gender
	});
}

// Add a new spouse to an existing family
function add_spouse_to_family(xref, famtag) {
	return edit_interface({
		"action": "add_spouse_to_family",
		"xref":   xref,
		"famtag": famtag
	});
}

function add_unlinked_indi() {
	return edit_interface({
		"action": "add_unlinked_indi"
	});
}

// Add a new spouse to an existing individual (creating a new family)
function add_spouse_to_individual(xref, famtag) {
	return edit_interface({
		"action": "add_spouse_to_individual",
		"xref":   xref,
		"famtag": famtag
	});
}

function linkspouse(xref, famtag) {
	return edit_interface({
		"action": "linkspouse",
		"xref": xref,
		"famtag": famtag,
		"famid": "new"
	});
}

function add_famc(xref) {
	return edit_interface({
		"action": "addfamlink",
		"xref": xref
	});
}

function edit_name(xref, fact_id) {
	return edit_interface({
		"action": "editname",
		"xref": xref,
		"fact_id": fact_id
	});
}

function add_name(xref) {
	return edit_interface({
		"action": "addname",
		"xref": xref
	});
}

// Accept the changes to a record - and reload the page
function accept_changes(xref) {
	jQuery.post('action.php', {
		action: 'accept-changes',
		xref:   xref,
		ged:    WT_GEDCOM,
		csrf:   WT_CSRF_TOKEN
	},
	function(){
		location.reload();
	});
	return false;
}

// Reject the changes to a record - and reload the page
function reject_changes(xref) {
	jQuery.post('action.php', {
		action: 'reject-changes',
		xref:   xref,
		ged:    WT_GEDCOM,
		csrf:   WT_CSRF_TOKEN
	},
	function(){
		location.reload();
	});
	return false;
}

// Delete a family - and reload the page
function delete_family(message, xref, gedcom) {
	if (confirm(message)) {
		jQuery.post('action.php', {
			action:   'delete-family',
			xref:      xref,
			ged:       typeof gedcom == 'undefined' ? WT_GEDCOM : gedcom,
			csrf:      WT_CSRF_TOKEN
		},
		function(){
			location.reload();
		});
	}
	return false;
}

// Delete an individual - and reload the page
function delete_individual(message, xref, gedcom) {
	if (confirm(message)) {
		jQuery.post('action.php', {
			action:   'delete-individual',
			xref:      xref,
			ged:       typeof gedcom == 'undefined' ? WT_GEDCOM : gedcom,
			csrf:      WT_CSRF_TOKEN
		},
		function(){
			location.reload();
		});
	}
	return false;
}

// Delete a media object - and reload the page
function delete_media(message, xref, gedcom) {
	if (confirm(message)) {
		jQuery.post('action.php', {
			action:   'delete-media',
			xref:      xref,
			ged:       typeof gedcom == 'undefined' ? WT_GEDCOM : gedcom,
			csrf:      WT_CSRF_TOKEN
		},
		function(){
			location.reload();
		});
	}
	return false;
}

// Delete a note object - and reload the page
function delete_note(message, xref, gedcom) {
	if (confirm(message)) {
		jQuery.post('action.php', {
			action:   'delete-note',
			xref:      xref,
			ged:       typeof gedcom == 'undefined' ? WT_GEDCOM : gedcom,
			csrf:      WT_CSRF_TOKEN
		},
		function(){
			location.reload();
		});
	}
	return false;
}

// Delete a repository - and reload the page
function delete_repository(message, xref, gedcom) {
	if (confirm(message)) {
		jQuery.post('action.php', {
			action:   'delete-repository',
			xref:      xref,
			ged:       typeof gedcom == 'undefined' ? WT_GEDCOM : gedcom,
			csrf:      WT_CSRF_TOKEN
		},
		function(){
			location.reload();
		});
	}
	return false;
}

// Delete a source - and reload the page
function delete_source(message, xref, gedcom) {
	if (confirm(message)) {
		jQuery.post('action.php', {
			action:   'delete-source',
			xref:      xref,
			ged:       typeof gedcom == 'undefined' ? WT_GEDCOM : gedcom,
			csrf:      WT_CSRF_TOKEN
		},
		function(){
			location.reload();
		});
	}
	return false;
}

// Delete a fact - and reload the page
function delete_fact(message, xref, fact_id) {
	if (confirm(message)) {
		jQuery.post('action.php', {
			action:   'delete-fact',
			xref:      xref,
			fact_id:   fact_id,
			ged:       WT_GEDCOM,
			csrf:      WT_CSRF_TOKEN
		},
		function(){
			location.reload();
		});
	}
	return false;
}

// Remove links from one record to another - and reload the page
function unlink_media(message, source, target) {
	if (confirm(message)) {
		jQuery.post('action.php', {
			action: 'unlink-media',
			source: source,
			target: target,
			ged:    WT_GEDCOM,
			csrf:   WT_CSRF_TOKEN
		},
		function(){
			location.reload();
		});
	}
	return false;
}

// Copy a fact to the clipboard
function copy_fact(xref, fact_id) {
	jQuery.post('action.php', {
		action:   'copy-fact',
		xref:      xref,
		fact_id:   fact_id,
		ged:       WT_GEDCOM,
		csrf:      WT_CSRF_TOKEN
	},
	function(){
		location.reload();
	});
	return false;
}

// Paste a fact from the clipboard
function paste_fact(xref, element) {
	jQuery.post('action.php', {
		action:   'paste-fact',
		xref:      xref,
		fact_id:   jQuery(element).val(), // element is the <select> containing the option
		ged:       WT_GEDCOM,
		csrf:      WT_CSRF_TOKEN
	},
	function(){
		location.reload();
	});
	return false;
}

// Delete a user - and reload the page
function delete_user(message, user_id) {
	if (confirm(message)) {
		jQuery.post('action.php', {
			action:   'delete-user',
			user_id:   user_id,
			csrf:      WT_CSRF_TOKEN
		},
		function(){
			location.reload();
		});
	}
	return false;
}

// Masquerade as another user - and reload the page.
function masquerade(user_id) {
	jQuery.post('action.php', {
		action:   'masquerade',
		user_id:   user_id,
		csrf:      WT_CSRF_TOKEN
	},
	function(){
		location.reload();
	});
	return false;
}

function reorder_children(xref) {
	return edit_interface({
		"action": "reorder_children",
		"xref":   xref
	});
}

function reorder_families(xref) {
	return edit_interface({
		"action": "reorder_fams",
		"xref":    xref
	});
}

function reply(username, subject) {
	window.open('message.php?to=' + encodeURIComponent(username) + '&subject=' + encodeURIComponent(subject) + '&ged=' + encodeURIComponent(WT_GEDCOM), '_blank', mesg_window_specs);
	return false;
}

function delete_message(id) {
	window.open('message.php?action=delete&id=' + encodeURIComponent(id) + '&ged=' + encodeURIComponent(WT_GEDCOM), '_blank', mesg_window_specs);
	return false;
}

function change_family_members(xref) {
	return edit_interface({
		"action": "changefamily",
		"xref":   xref
	});
}

function addnewsource(field) {
	pastefield=field;
	return edit_interface({
		"action": "addnewsource",
		"xref":   "newsour"
	}, null, field);
}

function addnewrepository(field) {
	pastefield=field;
	return edit_interface({
		"action": "addnewrepository",
		"xref":   "newrepo"
	}, null, field);
}

function addnewnote(field) {
	pastefield=field;
	return edit_interface({
		"action": "addnewnote",
		"noteid": "newnote"
	}, null, field);
}

function addnewnote_assisted(field, xref) {
	pastefield=field;
	return edit_interface({
		"action": "addnewnote_assisted",
		"noteid": "newnote",
		"xref":   xref
	}, assist_window_specs, field);
}

function addmedia_links(field, iid, iname) {
	pastefield = field;
	insertRowToTable(iid, iname);
	return false;
}

function valid_date(datefield) {
	var months        = new Array("JAN","FEB","MAR","APR","MAY","JUN","JUL","AUG","SEP","OCT","NOV","DEC");
	var hijri_months  = new Array("MUHAR","SAFAR","RABIA","RABIT","JUMAA","JUMAT","RAJAB","SHAAB","RAMAD","SHAWW","DHUAQ","DHUAH");
	var hebrew_months = new Array("TSH","CSH","KSL","TVT","SHV","ADR","ADS","NSN","IYR","SVN","TMZ","AAV","ELL");
	var french_months = new Array("VEND","BRUM","FRIM","NIVO","PLUV","VENT","GERM","FLOR","PRAI","MESS","THER","FRUC","COMP");
	var jalali_months = new Array("FARVA","ORDIB","KHORD","TIR","MORDA","SHAHR","MEHR","ABAN","AZAR","DEY","BAHMA","ESFAN");

	var datestr=datefield.value;
	// if a date has a date phrase marked by () this has to be excluded from altering
	var datearr=datestr.split("(");
	var datephrase="";
	if (datearr.length > 1) {
		datestr=datearr[0];
		datephrase=datearr[1];
	}

	// Gedcom dates are upper case
	datestr=datestr.toUpperCase();
	// Gedcom dates have no leading/trailing/repeated whitespace
	datestr=datestr.replace(/\s+/, " ");
	datestr=datestr.replace(/(^\s)|(\s$)/, "");
	// Gedcom dates have spaces between letters and digits, e.g. "01JAN2000" => "01 JAN 2000"
	datestr=datestr.replace(/(\d)([A-Z])/, "$1 $2");
	datestr=datestr.replace(/([A-Z])(\d)/, "$1 $2");

	// Shortcut for quarter format, "Q1 1900" => "BET JAN 1900 AND MAR 1900".  See [ 1509083 ]
	if (datestr.match(/^Q ([1-4]) (\d\d\d\d)$/)) {
		datestr = "BET "+months[RegExp.$1*3-3]+" "+RegExp.$2+" AND "+months[RegExp.$1*3-1]+" "+RegExp.$2;
	}

	// Shortcut for @#Dxxxxx@ 01 01 1400, etc.
	if (datestr.match(/^(@#DHIJRI@|HIJRI)( \d?\d )(\d?\d)( \d?\d?\d?\d)$/)) {
		datestr = "@#DHIJRI@" + RegExp.$2 + hijri_months[parseInt(RegExp.$3, 10)-1] + RegExp.$4;
	}
	if (datestr.match(/^(@#DJALALI@|JALALI)( \d?\d )(\d?\d)( \d?\d?\d?\d)$/)) {
		datestr = "@#DJALALI@" + RegExp.$2 + jalali_months[parseInt(RegExp.$3, 10)-1] + RegExp.$4;
	}
	if (datestr.match(/^(@#DHEBREW@|HEBREW)( \d?\d )(\d?\d)( \d?\d?\d?\d)$/)) {
		datestr = "@#DHEBREW@" + RegExp.$2 + hebrew_months[parseInt(RegExp.$3, 10)-1] + RegExp.$4;
	}
	if (datestr.match(/^(@#DFRENCH R@|FRENCH)( \d?\d )(\d?\d)( \d?\d?\d?\d)$/)) {
		datestr = "@#DFRENCH R@" + RegExp.$2 + french_months[parseInt(RegExp.$3, 10)-1] + RegExp.$4;
	}

	// e.g. 17.11.1860, 03/04/2005 or 1999-12-31.  Use locale settings where DMY order is ambiguous.
	var qsearch = /^([^\d]*)(\d+)[^\d](\d+)[^\d](\d+)$/i;
	if (qsearch.exec(datestr)) {
		var f0=RegExp.$1;
		var f1=parseInt(RegExp.$2, 10);
		var f2=parseInt(RegExp.$3, 10);
		var f3=parseInt(RegExp.$4, 10);
		var f4=RegExp.$5;
		var dmy='DMY';
		if (typeof(locale_date_format)!='undefined')
			if (locale_date_format=='MDY' || locale_date_format=='YMD')
				dmy=locale_date_format;
		var yyyy=new Date().getFullYear();
		var yy=yyyy % 100;
		var cc=yyyy - yy;
		if (dmy=='DMY' && f1<=31 && f2<=12 || f1>13 && f1<=31 && f2<=12 && f3>31)
			datestr=f0+f1+" "+months[f2-1]+" "+(f3>=100?f3:(f3<=yy?f3+cc:f3+cc-100));
		else if (dmy=='MDY' && f1<=12 && f2<=31 || f2>13 && f2<=31 && f1<=12 && f3>31)
			datestr=f0+f2+" "+months[f1-1]+" "+(f3>=100?f3:(f3<=yy?f3+cc:f3+cc-100));
		else if (dmy=='YMD' && f2<=12 && f3<=31 || f3>13 && f3<=31 && f2<=12 && f1>31)
			datestr=f0+f3+" "+months[f2-1]+" "+(f1>=100?f1:(f1<=yy?f1+cc:f1+cc-100));
	}

	// Shortcuts for date ranges
	datestr=datestr.replace(/^[>]([\w ]+)$/, "AFT $1");
	datestr=datestr.replace(/^[<]([\w ]+)$/, "BEF $1");
	datestr=datestr.replace(/^([\w ]+)[-]$/, "FROM $1");
	datestr=datestr.replace(/^[-]([\w ]+)$/, "TO $1");
	datestr=datestr.replace(/^[~]([\w ]+)$/, "ABT $1");
	datestr=datestr.replace(/^[*]([\w ]+)$/, "EST $1");
	datestr=datestr.replace(/^[#]([\w ]+)$/, "CAL $1");
	datestr=datestr.replace(/^([\w ]+) ?- ?([\w ]+)$/, "BET $1 AND $2");
	datestr=datestr.replace(/^([\w ]+) ?~ ?([\w ]+)$/, "FROM $1 TO $2");
	if (datestr.match(/^=([\d ()\/+*-]+)$/)) datestr=eval(RegExp.$1);

	// Convert full months to short months
	// TODO: also convert long/short months in other languages
	datestr=datestr.replace(/(JANUARY)/,   "JAN");
	datestr=datestr.replace(/(FEBRUARY)/,  "FEB");
	datestr=datestr.replace(/(MARCH)/,     "MAR");
	datestr=datestr.replace(/(APRIL)/,     "APR");
	datestr=datestr.replace(/(MAY)/,       "MAY");
	datestr=datestr.replace(/(JUNE)/,      "JUN");
	datestr=datestr.replace(/(JULY)/,      "JUL");
	datestr=datestr.replace(/(AUGUST)/,    "AUG");
	datestr=datestr.replace(/(SEPTEMBER)/, "SEP");
	datestr=datestr.replace(/(OCTOBER)/,   "OCT");
	datestr=datestr.replace(/(NOVEMBER)/,  "NOV");
	datestr=datestr.replace(/(DECEMBER)/,  "DEC");

	// Americans frequently enter dates as SEP 20, 1999
	// No need to internationalise this, as this is an english-language issue
	datestr=datestr.replace(/(JAN) (\d\d?)[, ]+(\d\d\d\d)/, "$2 $1 $3");
	datestr=datestr.replace(/(FEB) (\d\d?)[, ]+(\d\d\d\d)/, "$2 $1 $3");
	datestr=datestr.replace(/(MAR) (\d\d?)[, ]+(\d\d\d\d)/, "$2 $1 $3");
	datestr=datestr.replace(/(APR) (\d\d?)[, ]+(\d\d\d\d)/, "$2 $1 $3");
	datestr=datestr.replace(/(MAY) (\d\d?)[, ]+(\d\d\d\d)/, "$2 $1 $3");
	datestr=datestr.replace(/(JUN) (\d\d?)[, ]+(\d\d\d\d)/, "$2 $1 $3");
	datestr=datestr.replace(/(JUL) (\d\d?)[, ]+(\d\d\d\d)/, "$2 $1 $3");
	datestr=datestr.replace(/(AUG) (\d\d?)[, ]+(\d\d\d\d)/, "$2 $1 $3");
	datestr=datestr.replace(/(SEP) (\d\d?)[, ]+(\d\d\d\d)/, "$2 $1 $3");
	datestr=datestr.replace(/(OCT) (\d\d?)[, ]+(\d\d\d\d)/, "$2 $1 $3");
	datestr=datestr.replace(/(NOV) (\d\d?)[, ]+(\d\d\d\d)/, "$2 $1 $3");
	datestr=datestr.replace(/(DEC) (\d\d?)[, ]+(\d\d\d\d)/, "$2 $1 $3");

	// Apply leading zero to day numbers
	datestr=datestr.replace(/(^| )(\d [A-Z]{3,5} \d{4})/, "$10$2");

	if (datephrase) {
		datestr=datestr+" ("+datephrase;
	}
	// Only update it if is has been corrected - otherwise input focus
	// moves to the end of the field unnecessarily
	if (datefield.value !== datestr) {
		datefield.value=datestr;
	}
}
var oldheight = 0;
var oldwidth = 0;
var oldz = 0;
var oldleft = 0;
var big = 0;
var oldboxid = "";
var oldimgw = 0;
var oldimgh = 0;
var oldimgw1 = 0;
var oldimgh1 = 0;
var diff = 0;
var oldfont = 0;
var oldname = 0;
var oldthumbdisp = 0;
var repositioned = 0;
var oldiconsdislpay = 0;
var rv =null;

function expandbox(boxid, bstyle) {
	if (big==1) {
		if (clength>0) { // True only if compact chart
			fontdef.style.display='none';
		}
		restorebox(oldboxid, bstyle);
		if (boxid==oldboxid) return true;
	}

	jQuery(document).ready(function() {
		clength = jQuery(".compact_view").length;
	});

	var url = window.location.toString();
	divbox = document.getElementById("out-"+boxid);
	inbox = document.getElementById("inout-"+boxid);
	inbox2 = document.getElementById("inout2-"+boxid);
	parentbox = document.getElementById("box"+boxid);
	if (!parentbox) {
		parentbox=divbox;
	}
	gender = document.getElementById("box-"+boxid+"-gender");
	thumb1 = document.getElementById("box-"+boxid+"-thumb");
	famlinks = document.getElementById("I"+boxid+"links");
	icons = document.getElementById("icons-"+boxid);
	iconz = document.getElementById("iconz-"+boxid);	// This is the Zoom icon

	if (divbox) {
		if (icons) {
		oldiconsdislpay = icons.style.display;
		icons.style.display = "block";
		}
		if (jQuery(iconz).hasClass("icon-zoomin")) {
			jQuery(iconz).removeClass("icon-zoomin").addClass("icon-zoomout");
		} else {
			jQuery(iconz).removeClass("icon-zoomout").addClass("icon-zoomin");
		}
		oldboxid=boxid;
		big = 1;
		oldheight=divbox.style.height;
		oldwidth=divbox.style.width;
		oldz = parentbox.style.zIndex;
		if (url.indexOf("descendancy.php")==-1) parentbox.style.zIndex='100';
		if (bstyle!=2) {
			divbox.style.width='300px';
			diff = 300-parseInt(oldwidth);
			if (famlinks) {
				famleft = parseInt(famlinks.style.left);
				famlinks.style.left = (famleft+diff)+"px";
			}
		}
		divleft = parseInt(parentbox.style.left);
		if (textDirection=="rtl") divleft = parseInt(parentbox.style.right);
		oldleft=divleft;
		divleft = divleft - diff;
		repositioned = 0;
		if (divleft<0) {
			repositioned = 1;
			divleft=0;
		}
		divbox.style.height='auto';
		if (inbox)
		{
			inbox.style.display='block';
			if ( inbox.innerHTML.indexOf("LOADING")>0 )
			{
				//-- load data from expand_view.php
				var pid = boxid.split(".")[0];
				var oXmlHttp = createXMLHttp();
				oXmlHttp.open("get", "expand_view.php?pid=" + pid, true);
				oXmlHttp.onreadystatechange=function()
				{
					if (oXmlHttp.readyState==4)
					{
						inbox.innerHTML = oXmlHttp.responseText;
					}
				};
				oXmlHttp.send(null);
			}
		} else {
			inbox.style.display='none';
		}

		if (inbox2) inbox2.style.display='none';

		fontdef = document.getElementById("fontdef-"+boxid);
		if (fontdef) {
			oldfont = fontdef.className;
			fontdef.className = 'detailsZoom';
			fontdef.style.display='block';
		}
		namedef = document.getElementById("namedef-"+boxid);
		if (namedef) {
			oldname = namedef.className;
			namedef.className = 'nameZoom';
		}
		addnamedef = document.getElementById("addnamedef-"+boxid);
		if (addnamedef) {
			oldaddname = addnamedef.className;
			addnamedef.className = 'nameZoom';
		}
		if (thumb1) {
			oldthumbdisp = thumb1.style.display;
			thumb1.style.display='block';
			oldimgw = thumb1.offsetWidth;
			oldimgh = thumb1.offsetHeight;
			if (oldimgw) thumb1.style.width = (oldimgw*2)+"px";
			if (oldimgh) thumb1.style.height = (oldimgh*2)+"px";
		}
		if (gender) {
			oldimgw1 = gender.offsetWidth;
			oldimgh1 = gender.offsetHeight;
			if (oldimgw1) gender.style.width = "15px";
			if (oldimgh1) gender.style.height = "15px";
		}
	}
	return true;
}

function createXMLHttp() {
	if (typeof XMLHttpRequest != "undefined") {
		return new XMLHttpRequest();
	} else if (window.ActiveXObject) {
		var ARR_XMLHTTP_VERS=["MSXML2.XmlHttp.5.0","MSXML2.XmlHttp.4.0",
			"MSXML2.XmlHttp.3.0","MSXML2.XmlHttp","Microsoft.XmlHttp"];

		for (var i = 0; i < ARR_XMLHTTP_VERS.length; i++)
		{
			try {
				var oXmlHttp = new ActiveXObject(ARR_XMLHTTP_VERS[i]);
				return oXmlHttp;
			} catch (oError) {}
		}
	}
	throw new Error("XMLHttp object could not be created.");
}

function restorebox(boxid, bstyle) {
	divbox = document.getElementById("out-"+boxid);
	inbox = document.getElementById("inout-"+boxid);
	inbox2 = document.getElementById("inout2-"+boxid);
	parentbox = document.getElementById("box"+boxid);
	if (!parentbox) {
		parentbox=divbox;
	}
	thumb1 = document.getElementById("box-"+boxid+"-thumb");
	icons = document.getElementById("icons-"+boxid);
	iconz = document.getElementById("iconz-"+boxid); // This is the Zoom icon
	if (divbox) {
		if (icons) icons.style.display = oldiconsdislpay;
		if (jQuery(iconz).hasClass("icon-zoomin")) {
			jQuery(iconz).removeClass("icon-zoomin").addClass("icon-zoomout");
		} else {
			jQuery(iconz).removeClass("icon-zoomout").addClass("icon-zoomin");
		}
		big = 0;
		if (gender) {
			oldimgw1 = oldimgw1+"px";
			oldimgh1 = oldimgh1+"px";
			gender.style.width = oldimgw1;
			gender.style.height = oldimgh1;
		}
		if (thumb1) {
			oldimgw = oldimgw+"px";
			oldimgh = oldimgh+"px";
			thumb1.style.width = oldimgw;
			thumb1.style.height = oldimgh;
			thumb1.style.display=oldthumbdisp;
		}
		divbox.style.height=oldheight;
		divbox.style.width=oldwidth;
		if (parentbox) {
			parentbox.style.zIndex=oldz;
		}
		if (inbox) inbox.style.display='none';
		if (inbox2) inbox2.style.display='block';
		fontdef = document.getElementById("fontdef-"+boxid);
		if (fontdef) fontdef.className = oldfont;
		namedef = document.getElementById("namedef-"+boxid);
		if (namedef) namedef.className = oldname;
		addnamedef = document.getElementById("addnamedef-"+boxid);
		if (addnamedef) addnamedef.className = oldaddname;
	}
	return true;
}

var menutimeouts = [];

function show_submenu(elementid, parentid, dir) {
	var pagewidth = document.body.scrollWidth+document.documentElement.scrollLeft;
	var element = document.getElementById(elementid);
	if (element && element.style) {
				if (document.all) {
					pagewidth = document.body.offsetWidth;
				} else {
					pagewidth = document.body.scrollWidth+document.documentElement.scrollLeft-55;
					if (textDirection=="rtl") {
						boxright = element.offsetLeft+element.offsetWidth+10;
					}
				}

		//-- make sure the submenu is the size of the largest child
		var maxwidth = 0;
		var count = element.childNodes.length;
		for (var i=0; i<count; i++) {
			var child = element.childNodes[i];
			if (child.offsetWidth > maxwidth+5) maxwidth = child.offsetWidth;
		}
		if (element.offsetWidth <  maxwidth) {
			element.style.width = maxwidth+"px";
		}
		var pelement, boxright;
		if (dir=="down") {
			pelement = document.getElementById(parentid);
			if (pelement) {
				element.style.left=pelement.style.left;
				boxright = element.offsetLeft+element.offsetWidth+10;
				if (boxright > pagewidth) {
					var menuleft = pagewidth-element.offsetWidth;
					element.style.left = menuleft + "px";
				}
			}
		} else if (dir=="right") {
			pelement = document.getElementById(parentid);
			if (pelement) {
				if (textDirection=="ltr") {
				var boxleft = pelement.offsetLeft+pelement.offsetWidth-40;
				boxright = boxleft+element.offsetWidth+10;
				if (boxright > pagewidth) {
					element.style.right = pelement.offsetLeft + "px";
				} else {
					element.style.left=boxleft+"px";
				}
				} else {
					element.style.left = (pelement.offsetLeft-element.offsetWidth)+"px";
				}
				element.style.top = pelement.offsetTop+"px";
			}
		}

		if (element.offsetLeft < 0) element.style.left = "0px";

		//-- put scrollbars on really long menus
		if (element.offsetHeight > 500) {
			element.style.height = '400px';
			element.style.overflow = 'auto';
		}

		element.style.visibility='visible';
	}
	clearTimeout(menutimeouts[elementid]);
	menutimeouts[elementid] = null;
}

function hide_submenu(elementid) {
	if (typeof menutimeouts[elementid] !== "number") {
		return;
	}
	var element = document.getElementById(elementid);
	if (element && element.style) {
		element.style.visibility='hidden';
	}
	clearTimeout(menutimeouts[elementid]);
	menutimeouts[elementid] = null;
}

function timeout_submenu(elementid) {
	if (typeof menutimeouts[elementid] !== "number") {
		menutimeouts[elementid] = setTimeout("hide_submenu('"+elementid+"')", 100);
	}
}

function focusHandler(evt) {
	var e = evt ? evt : window.event;
	if (!e) return;
	if (e.target)
		pastefield = e.target;
	else if(e.srcElement) pastefield = e.srcElement;
}

function loadHandler() {
	var i, j;

	for (i = 0; i < document.forms.length; i++)
		for (j = 0; j < document.forms[i].elements.length; j++) {
			if (document.forms[i].elements[j].type=="text") {
				if (document.forms[i].elements[j].onfocus === null) {
					document.forms[i].elements[j].onfocus = focusHandler;
				}
			}
		}
}

function statusDisable(sel) {
	var cbox = document.getElementById(sel);
	cbox.checked = false;
	cbox.disabled = true;
}

function statusEnable(sel) {
	var cbox = document.getElementById(sel);
	cbox.disabled = false;
}

function statusChecked(sel) {
	var cbox = document.getElementById(sel);
	cbox.checked = true;
}

var monthLabels = [];
monthLabels[1] = "January";
monthLabels[2] = "February";
monthLabels[3] = "March";
monthLabels[4] = "April";
monthLabels[5] = "May";
monthLabels[6] = "June";
monthLabels[7] = "July";
monthLabels[8] = "August";
monthLabels[9] = "September";
monthLabels[10] = "October";
monthLabels[11] = "November";
monthLabels[12] = "December";

var monthShort = [];
monthShort[1] = "JAN";
monthShort[2] = "FEB";
monthShort[3] = "MAR";
monthShort[4] = "APR";
monthShort[5] = "MAY";
monthShort[6] = "JUN";
monthShort[7] = "JUL";
monthShort[8] = "AUG";
monthShort[9] = "SEP";
monthShort[10] = "OCT";
monthShort[11] = "NOV";
monthShort[12] = "DEC";

var daysOfWeek = [];
daysOfWeek[0] = "S";
daysOfWeek[1] = "M";
daysOfWeek[2] = "T";
daysOfWeek[3] = "W";
daysOfWeek[4] = "T";
daysOfWeek[5] = "F";
daysOfWeek[6] = "S";

var weekStart = 0;

function cal_setMonthNames(jan, feb, mar, apr, may, jun, jul, aug, sep, oct, nov, dec) {
	monthLabels[1] = jan;
	monthLabels[2] = feb;
	monthLabels[3] = mar;
	monthLabels[4] = apr;
	monthLabels[5] = may;
	monthLabels[6] = jun;
	monthLabels[7] = jul;
	monthLabels[8] = aug;
	monthLabels[9] = sep;
	monthLabels[10] = oct;
	monthLabels[11] = nov;
	monthLabels[12] = dec;
}

function cal_setDayHeaders(sun, mon, tue, wed, thu, fri, sat) {
	daysOfWeek[0] = sun;
	daysOfWeek[1] = mon;
	daysOfWeek[2] = tue;
	daysOfWeek[3] = wed;
	daysOfWeek[4] = thu;
	daysOfWeek[5] = fri;
	daysOfWeek[6] = sat;
}

function cal_setWeekStart(day) {
	if (day >=0 && day < 7) weekStart = day;
}

function cal_toggleDate(dateDivId, dateFieldId) {
	var dateDiv = document.getElementById(dateDivId);
	if (!dateDiv) return false;

	if (dateDiv.style.visibility=='visible') {
		dateDiv.style.visibility = 'hidden';
		return false;
	}
	if (dateDiv.style.visibility=='show') {
		dateDiv.style.visibility = 'hide';
		return false;
	}

	var dateField = document.getElementById(dateFieldId);
	if (!dateField) return false;

	/* Javascript calendar functions only work with precise gregorian dates "D M Y" or "Y" */
	var greg_regex = /((\d+ (JAN|FEB|MAR|APR|MAY|JUN|JUL|AUG|SEP|OCT|NOV|DEC) )?\d+)/;
	var date;
	if (greg_regex.exec(dateField.value)) {
		date = new Date(RegExp.$1);
	} else {
		date = new Date();
	}

	dateDiv.innerHTML = cal_generateSelectorContent(dateFieldId, dateDivId, date);
	if (dateDiv.style.visibility=='hidden') {
		dateDiv.style.visibility = 'visible';
		return false;
	}
	if (dateDiv.style.visibility=='hide') {
		dateDiv.style.visibility = 'show';
		return false;
	}
	return false;
}

function cal_generateSelectorContent(dateFieldId, dateDivId, date) {
	var content = '<table border="1"><tr>';
	content += '<td><select name="'+dateFieldId+'_daySelect" id="'+dateFieldId+'_daySelect" onchange="return cal_updateCalendar(\''+dateFieldId+'\', \''+dateDivId+'\');">';
	for (i=1; i<32; i++) {
		content += '<option value="'+i+'"';
		if (date.getDate()==i) content += ' selected="selected"';
		content += '>'+i+'</option>';
	}
	content += '</select></td>';
	content += '<td><select name="'+dateFieldId+'_monSelect" id="'+dateFieldId+'_monSelect" onchange="return cal_updateCalendar(\''+dateFieldId+'\', \''+dateDivId+'\');">';
	for (i=1; i<13; i++) {
		content += '<option value="'+i+'"';
		if (date.getMonth()+1==i) content += ' selected="selected"';
		content += '>'+monthLabels[i]+'</option>';
	}
	content += '</select></td>';
	content += '<td><input type="text" name="'+dateFieldId+'_yearInput" id="'+dateFieldId+'_yearInput" size="5" value="'+date.getFullYear()+'" onchange="return cal_updateCalendar(\''+dateFieldId+'\', \''+dateDivId+'\');" /></td></tr>';
	content += '<tr><td colspan="3">';
	content += '<table width="100%">';
	content += '<tr>';
	j = weekStart;
	for (i=0; i<7; i++) {
		content += '<td ';
		content += 'class="descriptionbox"';
		content += '>';
		content += daysOfWeek[j];
		content += '</td>';
		j++;
		if (j>6) j=0;
	}
	content += '</tr>';

	var tdate = new Date(date.getFullYear(), date.getMonth(), 1);
	var day = tdate.getDay();
	day = day - weekStart;
	var daymilli = (1000*60*60*24);
	tdate = tdate.getTime() - (day*daymilli) + (daymilli/2);
	tdate = new Date(tdate);

	for (j=0; j<6; j++) {
		content += '<tr>';
		for (i=0; i<7; i++) {
			content += '<td ';
			if (tdate.getMonth()==date.getMonth()) {
				if (tdate.getDate()==date.getDate()) content += 'class="descriptionbox"';
				else content += 'class="optionbox"';
			}
			else content += 'style="background-color:#EAEAEA; border: solid #AAAAAA 1px;"';
			content += '><a href="#" onclick="return cal_dateClicked(\''+dateFieldId+'\', \''+dateDivId+'\', '+tdate.getFullYear()+', '+tdate.getMonth()+', '+tdate.getDate()+');">';
			content += tdate.getDate();
			content += '</a></td>';
			var datemilli = tdate.getTime() + daymilli;
			tdate = new Date(datemilli);
		}
		content += '</tr>';
	}
	content += '</table>';
	content += '</td></tr>';
	content += '</table>';

	return content;
}

function cal_setDateField(dateFieldId, year, month, day) {
	var dateField = document.getElementById(dateFieldId);
	if (!dateField) return false;
	if (day<10) day = "0"+day;
	dateField.value = day+' '+monthShort[month+1]+' '+year;
	return false;
}

function cal_updateCalendar(dateFieldId, dateDivId) {
	var dateSel = document.getElementById(dateFieldId+'_daySelect');
	if (!dateSel) return false;
	var monthSel = document.getElementById(dateFieldId+'_monSelect');
	if (!monthSel) return false;
	var yearInput = document.getElementById(dateFieldId+'_yearInput');
	if (!yearInput) return false;

	var month = parseInt(monthSel.options[monthSel.selectedIndex].value);
	month = month-1;

	var date = new Date(yearInput.value, month, dateSel.options[dateSel.selectedIndex].value);
	if (!date) alert('Date error '+date);
	cal_setDateField(dateFieldId, date.getFullYear(), date.getMonth(), date.getDate());

	var dateDiv = document.getElementById(dateDivId);
	if (!dateDiv) {
		alert('no dateDiv '+dateDivId);
		return false;
	}
	dateDiv.innerHTML = cal_generateSelectorContent(dateFieldId, dateDivId, date);

	return false;
}

function cal_dateClicked(dateFieldId, dateDivId, year, month, day) {
	cal_setDateField(dateFieldId, year, month, day);
	cal_toggleDate(dateDivId, dateFieldId);
	return false;
}

function findWindow(ged, type, pastefield, queryParams) {
	queryParams = queryParams || {};
	queryParams.type = type;
	queryParams.ged = typeof ged === 'undefined' ? WT_GEDCOM : ged;
	window.pastefield = pastefield;
	window.open('find.php?' + jQuery.param(queryParams), '_blank', find_window_specs);
	return false;
}

function findIndi(field, indiname, ged) {
	window.nameElement = indiname;
	return findWindow(ged, "indi", field);
}

function findPlace(field, ged) {
	return findWindow(ged, "place", field);
}

function findFamily(field, ged) {
	return findWindow(ged, "fam", field);
}

function findMedia(field, choose, ged) {
	return findWindow(ged, "media", field, {
		"choose": choose || "0all"
	});
}

function findSource(field, sourcename, ged) {
	window.nameElement = sourcename;
	return findWindow(ged, "source", field);
}

function findnote(field, notename, ged) {
	window.nameElement = notename;
	return findWindow(ged, "note", field);
}

function findRepository(field, ged) {
	return findWindow(ged, "repo", field);
}

function findSpecialChar(field) {
	return findWindow(undefined, "specialchar", field);
}

function findFact(field, ged) {
	return findWindow(ged, "facts", field, {
		"tags": field.value
	});
}

function ilinkitem(mediaid, type, ged) {
	ged = (typeof ged === 'undefined') ? WT_GEDCOM : ged;
	window.open('inverselink.php?mediaid=' + encodeURIComponent(mediaid) + '&linkto=' + encodeURIComponent(type) + '&ged=' + encodeURIComponent(ged), '_blank', find_window_specs);
	return false;
}

function message(username, method, url) {
	window.open('message.php?to=' + encodeURIComponent(username) + '&method=' + encodeURIComponent(method) + '&url=' + encodeURIComponent(url), '_blank', mesg_window_specs);
	return false;
}

function valid_lati_long(field, pos, neg) {
	// valid LATI or LONG according to Gedcom standard
	// pos (+) : N or E
	// neg (-) : S or W
	var txt=field.value.toUpperCase();
	txt=txt.replace(/(^\s*)|(\s*$)/g, ''); // trim
	txt=txt.replace(/ /g, ':'); // N12 34 ==> N12.34
	txt=txt.replace(/\+/g, ''); // +17.1234 ==> 17.1234
	txt=txt.replace(/-/g, neg); // -0.5698 ==> W0.5698
	txt=txt.replace(/,/g, '.'); // 0,5698 ==> 0.5698
	// 0°34'11 ==> 0:34:11
	txt=txt.replace(/\uB0/g, ':'); // °
	txt=txt.replace(/\u27/g, ':'); // '
	// 0:34:11.2W ==> W0.5698
	txt=txt.replace(/^([0-9]+):([0-9]+):([0-9.]+)(.*)/g, function($0, $1, $2, $3, $4) { var n=parseFloat($1); n+=($2/60); n+=($3/3600); n=Math.round(n*1E4)/1E4; return $4+n; });
	// 0:34W ==> W0.5667
	txt=txt.replace(/^([0-9]+):([0-9]+)(.*)/g, function($0, $1, $2, $3) { var n=parseFloat($1); n+=($2/60); n=Math.round(n*1E4)/1E4; return $3+n; });
	// 0.5698W ==> W0.5698
	txt=txt.replace(/(.*)([N|S|E|W]+)$/g, '$2$1');
	// 17.1234 ==> N17.1234
	if (txt && txt.charAt(0)!=neg && txt.charAt(0)!=pos)
		txt=pos+txt;
	field.value = txt;
}


// This is the default way for webtrees to show image galleries.
// Custom themes may use a different viewer.
function activate_colorbox(config) {
	jQuery.extend(jQuery.colorbox.settings, {
		// Don't scroll window with document
		fixed:         true,
		// Simple I18N - the text will need to come from PHP
		current:        '',
		previous:       textDirection=='ltr' ? '\u25c0' : '\u25b6', // ◀ ▶
		next:           textDirection=='ltr' ? '\u25b6' : '\u25c0', // ▶ ◀
		slideshowStart: '\u25cb', // ○
		slideshowStop:  '\u25cf', // ●
		close:          '\u2715'  // ×
	});
	if (config) {
		jQuery.extend(jQuery.colorbox.settings, config);
	}

	// Trigger an event when we click on an (any) image
	jQuery('body').on('click', 'a.gallery', function(event) {
		// Remove colorbox from hidden media (e.g. on other tabs)
		// (not needed unless we add :visible to our selectors - which may not
		// work on all browsers?)
		//jQuery.colorbox.remove();

		// Enable colorbox for images
		jQuery('a[type^=image].gallery').colorbox({
			photo:         true,
			maxWidth:      '95%',
			maxHeight:     '95%',
			rel:           'gallery', // Turn all images on the page into a slideshow
			slideshow:     true,
			slideshowAuto: false,
			// Add wheelzoom to the displayed image
			onComplete:    function() {
				jQuery('.cboxPhoto').wheelzoom();
				// Drag events cause the slideshow to advance.  Prevent this.
				// TODO - only when the click was the end of a drag..
				jQuery('.cboxPhoto img').on('click', function(e) {e.preventDefault();});
			}
		});

		// Enable colorbox for audio using <audio></audio>, where supported
		//jQuery('html.video a[type^=video].gallery').colorbox({
		//	rel:         'nofollow' // Slideshows are just for images
		//});

		// Enable colorbox for video using <video></video>, where supported
		//jQuery('html.audio a[type^=audio].gallery').colorbox({
		//	rel:         'nofollow', // Slideshows are just for images
		//});

		// Allow all other media types remain as download links
	});
}

// Add LTR/RTL support for jQueryUI Accordions
jQuery.extend($.ui.accordion.prototype.options, {
	icons: {
		header: textDirection === "rtl" ? "ui-icon-triangle-1-w" : "ui-icon-triangle-1-e",
		activeHeader: "ui-icon-triangle-1-s"
	}
});