//sort through querystring using javascript
function getQueryVariable(variable)
{
	var i
	var query = window.location.search.substring(1);
	var vars = query.split("&");
	
	for (i = 0; i < vars.length; i++)
	{
		var pair = vars[i].split("=");
		if (pair[0] == variable)
		{
			return pair[1];
		}
	}
}

function hideLayer(id) {
	if(document.getElementById){
		clearTimeout(opac_timer_show[id])
		var obj = document.getElementById(id).style
		obj.visibility = hide_it
		obj.filter = "alpha(opacity=0, style=0)"
		obj.opacity = 0;
		obj.KhtmlOpacity = 0;
		opac[id] = 0 // set the opacity to 0 for the show function
		
	}
}

var opac = new Array;
var opac_timer_show = new Array;
var opac_timer_hide = new Array;


function showLayerOp(id){
	if (opac[id] == "" || opac[id] == null){opac[id] = 1}
	var obj = document.getElementById(id).style
	obj.visibility = "visible"
	if (opac[id] <= 95){
		obj.filter = "alpha(opacity=" + opac[id] + ", style=0)"
		obj.opacity = opac[id] /90
		obj.KhtmlOpacity = (opac[id] / 90);
		opac[id] += 30
		opac_timer_show[id] = setTimeout("showLayerOp(\""+id+"\")",50)
	}
	
	else {clearTimeout(opac_timer_show[id])}
}


var show_it = "visible"
var hide_it = "hidden"
var timer = new Array;
var timer2 = new Array;

var timerbox = new Array;

function closeCounter(id){
	if(navigator.userAgent.indexOf('Win') != -1)
	{
		timerbox[id] = "hideLayer('"+id+"')"
		timer[id] = setTimeout (timerbox[id], 150)
	}
	else
	{
		timerbox[id] = "hideLayerNoOP('"+id+"')"
		timer[id] = setTimeout (timerbox[id], 150)
	}
}

function closeCounter2(id){
	var timerbox = "hideLayer('"+id+"')"
	timer2[id] = setTimeout (timerbox, 150)
}





function hovChange(id){
	var filename = document.getElementById(id).src
	var extension = filename.charAt(filename.length-3) + filename.charAt(filename.length-2) + filename.charAt(filename.length-1)
	if(filename.charAt(filename.length-5) == "_"){
		filename = filename.substring(0,filename.length-5) + "." + extension
	}
	else{filename = filename.substring(0,filename.length-4) + "_." + extension}
	document.getElementById(id).src = filename
}