//	-	-	-	-	-	-	-	-

var IE = document.all?true:false;


function popupOSMap(gridref,gridref2)
{
	if (!gridref && gridref2.length)
		gridref = gridref2;
        var wWidth = 740;
        var wHeight = 520;
        var wLeft = Math.round(0.5 * (screen.availWidth - wWidth));
        var wTop = Math.round(0.5 * (screen.availHeight - wHeight)) - 20;
        if (gridref.length > 0) {
        	if (gridref.length < 7) {
			gridref = gridref.substr(0,gridref.length-2)+'5'+gridref.substr(gridref.length-2,2)+'5';
		}
	var newWin = window.open('http://getamap.ordnancesurvey.co.uk/getamap/frames.htm?mapAction=gaz&gazName=g&gazString='+gridref, 
		'gam',
		'left='+wLeft+',screenX='+wLeft+',top='+wTop+',screenY='+wTop+',width='+wWidth+',height='+wHeight+',status,scrolling=no');
	} else {
	var newWin = window.open('http://getamap.ordnancesurvey.co.uk/getamap/frames.htm', 
		'gam',
		'left='+wLeft+',screenX='+wLeft+',top='+wTop+',screenY='+wTop+',width='+wWidth+',height='+wHeight+',status,scrolling=no');
	}
}

//	-	-	-	-	-	-	-	-

function setCaretTo(obj, pos) { 
    if(obj.createTextRange) { 
        /* Create a TextRange, set the internal pointer to
           a specified position and show the cursor at this
           position
        */ 
        var range = obj.createTextRange(); 
        range.move("character", pos); 
        range.select(); 
    } else if(obj.selectionStart) { 
        /* Gecko is a little bit shorter on that. Simply
           focus the element and set the selection to a
           specified position
        */ 
        obj.focus(); 
        obj.setSelectionRange(pos, pos); 
    } 
}

function tabClick(tabname,divname,num,count) {
	for (var q=1;q<=count;q++) {
		document.getElementById(tabname+q).className = (num==q)?'tabSelected':'tab';
		if (divname != '') {
			document.getElementById(divname+q).style.display = (num==q)?'':'none';
		}
	}
}

//	-	-	-	-	-	-	-	-


function autoDisable(that) {
 	that.value = "Submitting... Please wait...";
 	name = "document."+that.form.name+"."+that.name;
  
 	setTimeout(name+".disabled = true",100); //if we disable in the function then form wont submit
 	setTimeout(name+".value="+name+".defaultValue; "+name+".disabled = false",30000);
 	return true;
}

//	-	-	-	-	-	-	-	-

function record_vote(type,id,vote) {
	var i=new Image();
	i.src= "/stuff/record_vote.php?t="+type+"&id="+id+"&v="+vote;
	document.getElementById("votediv"+id).innerHTML = "Thank you!";
}

function star_hover(id,vote,num) {
	for (var i=1;i<=vote;i++) {
		document.images['star'+i+id].src = document.images['star'+i+id].src.replace(/light/,'on');
	}
}
function star_out(id,num) {
	for (var i=1;i<=num;i++) {
		document.images['star'+i+id].src = document.images['star'+i+id].src.replace(/-on/,'-light');
	}
}

//	-	-	-	-	-	-	-	-


function di20(id, newSrc) {
    var theImage = FWFindImage(document, id, 0);
    if (theImage) {
        theImage.src = newSrc;
    }
}

function FWFindImage(doc, name, j) {
    var theImage = false;
    if (doc.getElementById) {
    	theImage = doc.getElementById(name);
    }
    if (theImage) {
	    return theImage;
	}
   
    
    if (doc.images) {
        theImage = doc.images[name];
    }
    if (theImage) {
        return theImage;
    }
   
   if (doc.layers) {
        for (j = 0; j < doc.layers.length; j++) {
            theImage = FWFindImage(doc.layers[j].document, name, 0);
            if (theImage) {
                return (theImage);
            }
        }
    }
    return (false);
}

//	-	-	-	-	-	-	-	-

function setdate(name,date,form) {
	parts = date.split('-');
	parts[2] = parseInt(parts[2],10);
	parts[1] = parseInt(parts[1],10);
	ele = form.elements[name+'Year'].options;
	for(i=0;i<ele.length;i++) 
		if (ele[i].value == parts[0]) 
			ele[i].selected = true;
	ele = form.elements[name+'Month'].options;
	for(i=0;i<ele.length;i++) 
		if (parseInt(ele[i].value,10) == parts[1]) 
			ele[i].selected = true;
	ele = form.elements[name+'Day'].options;
	for(i=0;i<ele.length;i++) 
		if (parseInt(ele[i].value,10) == parts[2]) 
			ele[i].selected = true;
}

//	-	-	-	-	-	-	-	-

function onChangeImageclass()
{
	if (document.getElementById('otherblock')) {
		var sel=document.getElementById('imageclass');
		var idx=sel.selectedIndex;

		var isOther=idx==sel.options.length-1;

		var otherblock=document.getElementById('otherblock');
		otherblock.style.display=isOther?'':'none';
	}
}

//	-	-	-	-	-	-	-	-

function unescapeHTML_function() {
	var div = document.createElement('div');
	div.innerHTML = this;
	return div.childNodes[0] ? div.childNodes[0].nodeValue : '';
}
function fakeUnescapeHTML_function() {
	return this;
}

if (document.getElementById) {
	String.prototype.unescapeHTML = unescapeHTML_function;
} else {
	String.prototype.unescapeHTML = fakeUnescapeHTML_function;
}

//	-	-	-	-	-	-	-	-

function populateImageclass() 
{
	var sel=document.getElementById('imageclass');
	var opt=sel.options;
	var idx=sel.selectedIndex;
	var idx_value = null;
	if (idx > 0)
		idx_value = opt[idx].value;
	var first_opt = new Option(opt[0].text,opt[0].value);
	var last_opt = new Option(opt[opt.length-1].text,opt[opt.length-1].value);

	//clear out the options
	for(q=opt.length;q>=0;q=q-1) {
		opt[q] = null;
	}
	opt.length = 0; //just to confirm!

	//re-add the first
	opt[0] = first_opt;

	newselected = -1;
	//add the recent list
	if (typeof catListUser != "undefined" && catListUser.length > 1) {
		for(i=0; i < catListUser.length; i++) {
			if (catListUser[i].length > 0) {
				act = catListUser[i].unescapeHTML();
				var newoption = new Option(act,act);
				if (idx_value == act) {
					newoption.selected = true;
					newselected = opt.length;
				}
				opt[opt.length] = newoption;
			}
		}
		var newoption = new Option('-----','-----');
		opt[opt.length] = newoption;
	}
	//add the whole list
	for(i=0; i < catList.length; i++) {
		if (catList[i].length > 0) {
			act = catList[i].unescapeHTML();
			var newoption = new Option(act,act);
			if (idx_value == act) {
				newoption.selected = true;
				newselected = opt.length;
			}
			opt[opt.length] = newoption;
		}
	}

	//if our value is not found then use other textbox!
	if (newselected < 1 && idx_value != null) {
		var selother=document.getElementById('imageclassother');
		selother.value = idx_value;
		idx_value = 'Other';
	} else {
		sel.selectedIndex = newselected;
	}

	//re add the other option
	opt[opt.length] = last_opt;
	if (idx_value != null && idx_value == 'Other')
		sel.selectedIndex=opt.length-1;

	onChangeImageclass();
}

var hasloaded = false;
function prePopulateImageclass() {
	if (!hasloaded) {
		var sel=document.getElementById('imageclass');
		sel.disabled = false;
		var oldText = sel.options[0].text;
		sel.options[0].text = "please wait...";
		
		populateImageclass();
		
		hasloaded = true;
		sel.options[0].text = oldText;
		if (document.getElementById('imageclass_enable_button'))
			document.getElementById('imageclass_enable_button').disabled = true;
	}
}

//	-	-	-	-	-	-	-	-

function checkstyle(that,name,finalize) {
	var valid = true;
	var type = null;
	var v = that.value;
	if (v.length > 1) {
		var f = v.substr(0,1);
		if (f.match(/[a-z]/)) {
			valid = false;
			type = 'missing initial capital';
		}
		
		if (v.toUpperCase() == v || v.toLowerCase() == v) {
			valid = false;
			type = 'single case';
		}
		
		var l = v.substr(-1);
		var l3 = v.substr(-3);
		if (name == 'title' && l == '.' && l3 != '...') {
			valid = false;
			type = 'full stop';
		}
		
		if (finalize && !v.match(/ /)) {
			valid = false;
			type = 'very short';
		}
		
		if (name == 'comment' && that.form.title.value == v) {
			valid = false;
			type = 'duplicate of title';
		}
	}
	
	document.getElementById(name+'style').style.display = valid?'none':'';
	document.getElementById(name+'stylet').innerHTML = type?("("+type+")"):'';
	document.getElementById('styleguidelink').style.backgroundColor = valid?'':'yellow';
}

//	-	-	-	-	-	-	-	-

function markImage(image) {
	current = readCookie('markedImages');
	newtext = 'marked';
	if (current) {
		re = new RegExp("\\b"+image+"\\b");
		if (current == image || current.search(re) > -1) {
			newCookie = current.replace(re,',').commatrim();
			newtext = 'Mark';
		} else {
			newCookie = current + ',' + image;
		}
	} else {
		newCookie = image.toString();
	}

	createCookie('markedImages',newCookie,10);

	if (document.getElementById('marked_number')) {
		if (!newCookie) {//chrome needs this... 
			document.getElementById('marked_number').innerHTML = '[0]';
		} else {
			splited = newCookie.commatrim().split(',');
			document.getElementById('marked_number').innerHTML = '['+(splited.length+0)+']';
		}
	}

	ele = document.getElementById('mark'+image);
	if(ele.innerText != undefined) {
		ele.innerText = newtext;
	} else {
		ele.textContent = newtext;
	}
}

function markAllImages(str) {
	for(var q=0;q<document.links.length;q++) {
		if (document.links[q].text == str) {
			markImage(document.links[q].id.substr(4));
		}
	}
}

String.prototype.commatrim = function () {
	return this.replace(/^,+|,+$/g,"").replace(/,,/g,',');
}

function importToMarkedImages() {
	newCookie = readCookie('markedImages');
	if (!newCookie)
		newCookie = new String();
	list = prompt('Paste your current list, either comma or space separated\n or just surrounded with [[[ ]]] ','');
	if (list && list != '') {
		splited = list.split(/[^\d]+/);
		count=0;	
		for(i=0; i < splited.length; i++) {
			image = splited[i];
			if (image != '')
				if (newCookie.search(new RegExp("\\b"+image+"\\b")) == -1) {
					newCookie = newCookie + ',' + image;
					count=count+1;
				}
		}
		createCookie('markedImages',newCookie,10);
		showMarkedImages();
		leng = newCookie.commatrim().split(',').length;
		alert("Added "+count+" image(s) to your list, now contains "+leng+" images in total.");
	} else {
		alert("Nothing to add");
	}
}

function displayMarkedImages() {
	current = readCookie('markedImages');
	if (current) {
		splited = current.commatrim().split(',');
		newstring = '[[['+splited.join(']]] [[[')+']]]';
		prompt("Copy and Paste the following into the forum",newstring);
	} else {
		alert("You haven't marked any images yet. Or cookies are disabled");
	}
}

function returnMarkedImages() {
	current = readCookie('markedImages');
	if (current) {
		splited = current.commatrim().split(',');
		return '[[['+splited.join(']]] [[[')+']]]';
	} else {
		alert("You haven't marked any images yet. Or cookies are disabled");
		return '';
	}
}

function showMarkedImages() {
	current = readCookie('markedImages');
	if (current) {
		splited = current.commatrim().split(',');
		
		var hasInnerText = (document.getElementsByTagName('body')[0].innerText != undefined)?true:false;
		
		for(i=0; i < splited.length; i++) 
			if (document.getElementById('mark'+splited[i])) {
				ele = document.getElementById('mark'+splited[i])
				if(hasInnerText) {
				    ele.innerText = 'marked';
				} else {
				    ele.textContent = 'marked';
				}
			}
		if (document.getElementById('marked_number')) {
			document.getElementById('marked_number').innerHTML = '['+(splited.length+0)+']';
		}
	} 
}


function clearMarkedImages() {
	current = readCookie('markedImages');
	if (current && confirm('Are you sure?')) {
		splited = current.commatrim().split(',');

		var hasInnerText = (document.getElementsByTagName('body')[0].innerText != undefined)?true:false;
		
		for(i=0; i < splited.length; i++) 
			if (document.getElementById('mark'+splited[i])) {
				ele = document.getElementById('mark'+splited[i])
				if(hasInnerText) {
				    ele.innerText = 'Mark';
				} else {
				    ele.textContent = 'Mark';
				}
			}
		eraseCookie('markedImages');
		alert('All images removed from your list');
		if (document.getElementById('marked_number')) {
			document.getElementById('marked_number').innerHTML = '[0]';
		}
	} 
}

//	-	-	-	-	-	-	-	-

function createCookie(name,value,days) {
	if (days) {
		var date = new Date();
		date.setTime(date.getTime()+(days*24*60*60*1000));
		var expires = "; expires="+date.toGMTString();
	}
	else var expires = "";
	document.cookie = name+"="+value+expires+"; path=/";
}

function readCookie(name) {
	var ca = document.cookie.split(';');
	for(var i=0;i < ca.length;i++) {
		var pair = ca[i].split('=');
		var c = pair[0];
		while (c.charAt(0)==' ') c = c.substring(1,c.length);
		if (c == name) return pair[1];
	}
	return false;
}

function eraseCookie(name) {
	createCookie(name,"",-1);
}


//	-	-	-	-	-	-	-	-

	function show_tree(id) {
		document.getElementById("show"+id).style.display='';
		document.getElementById("hide"+id).style.display='none';
	}
	function hide_tree(id) {
		document.getElementById("show"+id).style.display='none';
		document.getElementById("hide"+id).style.display='';
	}

function collapseSnippets(num) {
	var ele;
	for (c=1;c<=num;c++) {
		if ((ele = document.getElementById("snippet"+c)) && ele.clientHeight > 118) {
			ele.className = ele.className+" snippetcollapsed";
			
			var div = document.createElement('div');
			div.id = "hidesnippetf"+c;
			div.className = 'snippetfooter';
			div.innerHTML = ' ';
			ele.appendChild( div);

			var div = document.createElement('div');
			div.id = "hidesnippet"+c;
			div.className = 'snippetexpander';
			div.innerHTML = '<a href="javascript:void(expandSnippet('+c+'));">+ Further information</a>';
			ele.appendChild( div);
		}
	}
}

function expandSnippet(c) {
	var ele = document.getElementById("snippet"+c);
	ele.className = ele.className.replace(/ snippetcollapsed/,'');
	var ele = document.getElementById("hidesnippet"+c);
	ele.style.display="none";
	var ele = document.getElementById("hidesnippetf"+c);
	ele.style.display="none";
	return null;
}

//	-	-	-	-	-	-	-	-

var marker1left = 14;
var marker1top = 14;

var marker2left = 14;
var marker2top = 14;

function overlayHideMarkers(e) {
	if (IE) {
		tempX = event.offsetX;
		tempY = event.offsetY;
	} else {
		tempX = e.layerX
		tempY = e.layerY
	}
	
	var m1 = document.getElementById('marker1');
	
	m1left = parseInt(m1.style.left)+marker1left;
	m1top = parseInt(m1.style.top)+marker1top;
	found = false;
	if (Math.abs(tempX - m1left) < marker1left && Math.abs(tempY - m1top) < marker1top) {
		m1.style.display = 'none';
	} else {
		m1.style.display = displayMarker1?'':'none';
	}
	
	var m2 = document.getElementById('marker2');

	m2left = parseInt(m2.style.left)+marker2left;
	m2top = parseInt(m2.style.top)+marker2top;

	if (Math.abs(tempX - m2left) < marker2left && Math.abs(tempY - m2top) < marker2top) {
		m2.style.display = 'none';
	} else {
		m2.style.display = displayMarker2?'':'none';
	}
	
	return false;
}

//	-	-	-	-	-	-	-	-


function rawurldecode( str ) {
    // http://kevin.vanzonneveld.net
    // +   original by: Brett Zamir

    var histogram = {};
    var ret = str.toString(); 

    var replacer = function(search, replace, str) {
	var tmp_arr = [];
	tmp_arr = str.split(search);
	return tmp_arr.join(replace);
    };

    // The histogram is identical to the one in urlencode.
    histogram["'"]   = '%27';
    histogram['(']   = '%28';
    histogram[')']   = '%29';
    histogram['*']   = '%2A';
    histogram['~']   = '%7E';
    histogram['!']   = '%21';

    for (replace in histogram) {
	searchstr = histogram[replace]; // Switch order when decoding
	ret = replacer(searchstr, replace, ret) // Custom replace. No regexing
    }

    // End with decodeURIComponent, which most resembles PHP's encoding functions
    ret = decodeURIComponent(ret);

    return ret;
}

//	-	-	-	-	-	-	-	-

//*** This code is copyright 2003 by Gavin Kistner, gavin@refinery.com
//*** It is covered under the license viewable at http://phrogz.net/JS/_ReuseLicense.txt
//*** Reuse or modification is free provided you abide by the terms of that license.
//*** (Including the first two lines above in your source code satisfies the conditions.)

//***Cross browser attach event function. For 'evt' pass a string value with the leading "on" omitted
//***e.g. AttachEvent(window,'load',MyFunctionNameWithoutParenthesis,false);

function AttachEvent(obj,evt,fnc,useCapture){
	if (!useCapture) useCapture=false;
	if (obj.addEventListener){
		obj.addEventListener(evt,fnc,useCapture);
		return true;
	} else if (obj.attachEvent) return obj.attachEvent("on"+evt,fnc);
	else{
		MyAttachEvent(obj,evt,fnc);
		obj['on'+evt]=function(){ MyFireEvent(obj,evt) };
	}
} 

//The following are for browsers like NS4 or IE5Mac which don't support either
//attachEvent or addEventListener
function MyAttachEvent(obj,evt,fnc){
	if (!obj.myEvents) obj.myEvents={};
	if (!obj.myEvents[evt]) obj.myEvents[evt]=[];
	var evts = obj.myEvents[evt];
	evts[evts.length]=fnc;
}
function MyFireEvent(obj,evt){
	if (!obj || !obj.myEvents || !obj.myEvents[evt]) return;
	var evts = obj.myEvents[evt];
	for (var i=0,len=evts.length;i<len;i++) evts[i]();
}