function addLoadEvent(func) {
	var oldonload = window.onload;
	if (typeof window.onload != 'function'){
		window.onload = func
	} else {
		window.onload = function() {
			oldonload();
			func();
		}
	}
}

function Left(str, n){
	if (n <= 0)
		return "";
	else if (n > String(str).length)
		return str;
	else
		return String(str).substring(0,n);
}

function Right(str, n){
	if (n <= 0)
		return "";
	else if (n > String(str).length)
		return str;
	else {
		var iLen = String(str).length;
		return String(str).substring(iLen, iLen - n);
	}
}

function prepareLinks() {

	if (!document.getElementById || !document.getElementsByTagName) {
		return;
	}
	
	var links = document.getElementsByTagName("a");
	
	for(var i=0; i<links.length; i++) {

		var str = links[i].getAttribute("href");

		if((Left(str,7)=="mailto:")||(Left(str,7)=="MAILTO:")){
			links[i].style.paddingLeft="20px";
			links[i].style.backgroundImage="url(template/images/icon-email-small.gif)";
			links[i].style.backgroundRepeat="no-repeat";
			links[i].style.backgroundPosition="left center";
		}

		if((Right(str,4)==".rtf")||(Right(str,4)==".RTF")){
			var addicon = document.createElement("img");
			addicon.setAttribute("src","template/images/icon-text.gif");
			addicon.setAttribute("alt","");
			addicon.style.paddingLeft="4px";
			links[i].appendChild(addicon);
		}

		if((Right(str,4)==".doc")||(Right(str,4)==".DOC")){
			var addicon = document.createElement("img");
			addicon.setAttribute("src","template/images/icon-word.gif");
			addicon.setAttribute("alt","");
			addicon.style.paddingLeft="4px";
			links[i].appendChild(addicon);
		}

		if((Right(str,4)==".dot")||(Right(str,4)==".DOT")){
			var addicon = document.createElement("img");
			addicon.setAttribute("src","template/images/icon-word.gif");
			addicon.setAttribute("alt","");
			addicon.style.paddingLeft="4px";
			links[i].appendChild(addicon);
		}

		if((Right(str,4)==".pdf")||(Right(str,4)==".PDF")){		
			var addicon = document.createElement("img");
			addicon.setAttribute("src","template/images/icon-acrobat.gif");
			addicon.setAttribute("alt","");
			addicon.style.paddingLeft="4px";
			links[i].appendChild(addicon);
		}
	
		if((Right(str,4)==".xls")||(Right(str,4)==".XLS")){
			var addicon = document.createElement("img");
			addicon.setAttribute("src","template/images/icon-excel.gif");
			addicon.setAttribute("alt","");
			addicon.style.paddingLeft="4px";
			links[i].appendChild(addicon);
		}
	
		if((Right(str,4)==".ppt")||(Right(str,4)==".PPT")||(Right(str,4)==".pps")||(Right(str,4)==".PPS")){
			var addicon = document.createElement("img");
			addicon.setAttribute("src","template/images/icon-powerpoint.gif");
			addicon.setAttribute("alt","");
			addicon.style.paddingLeft="4px";
			links[i].appendChild(addicon);
		}
	
		if((Right(str,4)==".jpg")||(Right(str,4)==".JPG")||(Right(str,4)==".gif")||(Right(str,4)==".GIF")||(Right(str,4)==".png")||(Right(str,4)==".PNG")||(Right(str,4)==".bmp")||(Right(str,4)==".BMP")){
			var addicon = document.createElement("img");
			addicon.setAttribute("src","template/images/icon-image.gif");
			addicon.setAttribute("alt","");
			addicon.style.paddingLeft="4px";
			links[i].appendChild(addicon);
		}
	
		if((Right(str,4)==".zip")||(Right(str,4)==".ZIP")){
			var addicon = document.createElement("img");
			addicon.setAttribute("src","template/images/icon-zip.gif");
			addicon.setAttribute("alt","");
			addicon.style.paddingLeft="4px";
			links[i].appendChild(addicon);
		}
		
	}
}

function switchStylestyle(styleName) {

	$('link[@rel*=style][@title]').each(function(i) {
		this.disabled = true;
		if (this.getAttribute('title') == styleName) this.disabled = false;
	});
	
	createCookie('style', styleName, 365);
	
	if(styleName == "highvisibility") {
		$("#directgovImage").attr({ src: BaseUrl + "template/images/directgov_logo_white-highvis.gif" });
	} else {
		$("#directgovImage").attr({ src: BaseUrl + "template/images/directgov_logo_white.gif" });
	}

}

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 nameEQ = name + "=";
	var ca = document.cookie.split(';');
	for(var i=0;i < ca.length;i++){
		var c = ca[i];
		while (c.charAt(0)==' ') c = c.substring(1,c.length);
		if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length);
	}
	return null;
}

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

$(document).ready(function() {

	$("<li class=\"styles\"><strong>Change text:</strong></li>").appendTo("#accessOptions")
	$("<li><a href=\"#\" rel=\"default\" class=\"styleswitch\"><img src=\"" + BaseUrl + "template/images/textsize-normal.gif\" alt=\"normal size\" /></a></li><li><a href=\"#\" rel=\"large\" class=\"styleswitch\"><img src=\"" + BaseUrl + "template/images/textsize-large.gif\" alt=\"large size\" /></a></li><li><a href=\"#\" rel=\"extralarge\" class=\"styleswitch\"><img src=\"" + BaseUrl + "template/images/textsize-extralarge.gif\" alt=\"extra large size\" /></a></li><li><a href=\"#\" rel=\"highvisibility\" class=\"styleswitch\"><img src=\"" + BaseUrl + "template/images/textsize-highvisibility.gif\" alt=\"high visibility size and colour\" /></a></li>").appendTo("#accessOptions")
	$("<li><a href=\"http://www.salford.gov.uk/accessibility.htm#textsize\" class=\"small\">(what is this?)</a></li>").appendTo("#accessOptions")
	$("#accessOptions li.changetext").hide()

	var c = readCookie('style');
	if (c) switchStylestyle(c);

	function filterPath(string) {
		return string
		.replace(/^\//,'')
		.replace(/(index|default).[a-zA-Z]{3,4}$/,'')
		.replace(/\/$/,'');
	}

// (Brett S.) Removed to ease navigation to KeywordsList.aspx, page has alot of content and this function slowed down the page load considerably
// 
//	$('a[href*=#]').each(function() {
//		
//		if ( ( filterPath(location.pathname) == filterPath(this.pathname) && location.hostname == this.hostname && this.hash.replace(/#/,'') ) ) {
//			var $targetId = $(this.hash), $targetAnchor = $('[name=' + this.hash.slice(1) +']');
//			var $target = $targetId.length ? $targetId : $targetAnchor.length ? $targetAnchor : false;
//			if ($target) {
//				var targetOffset = $target.offset().top;
//				$(this).click(function() {
//					$('html, body').animate({scrollTop: targetOffset}, 400);
//					return false;
//				});
//			}
//		}
//	});
	
	$("#qt").val("Search for...");

	$("#qt").click(function(){
		if($("#qt").val()=="Search for..."){
			$("#qt").val("");
		}
	});

	$("#qt").focus(function(){
		if($("#qt").val()=="Search for..."){
			$("#qt").val("");
		}
	});

	$("#qt").blur(function(){
		if($("#qt").val()==""){
			$("#qt").val("Search for...");
		}
	});
	
	$('.styleswitch').click(function(){
		switchStylestyle(this.getAttribute("rel"));
		return false;
	});

});

addLoadEvent(prepareLinks);