var __pagequery = null;

function PageQuery(q) {
	if(q.length > 1) {
		this.q = q.substring(1, q.length);
	} else {
		this.q = null;
	}
	
	this.keyValuePairs = new Array();
	
	if(q) {
		for(var i=0; i < this.q.split("&").length; i++) {
			this.keyValuePairs[i] = this.q.split("&")[i];
		}
	}
	
	this.getKeyValuePairs = function() {
		return this.keyValuePairs;
	}
	
	this.getValue = function(s) {
		for(var j=0; j < this.keyValuePairs.length; j++) {
			if(this.keyValuePairs[j].split("=")[0] == s)
			return this.keyValuePairs[j].split("=")[1];
		}
		return '';
	}
	
	this.getParameters = function() {
		var a = new Array(this.getLength());
		for(var j=0; j < this.keyValuePairs.length; j++) {
			a[j] = this.keyValuePairs[j].split("=")[0];
		}
		return a;
	}
	
	this.getLength = function() { return this.keyValuePairs.length; } 
}

function queryString(key){
	if (__pagequery == null) {
		__pagequery = new PageQuery(window.location.search);
	}
	return unescape(__pagequery.getValue(key)); 
}

function getexpirydate( nodays){
	var UTCstring;
	Today = new Date();
	nomilli=Date.parse(Today);
	Today.setTime(nomilli+nodays*24*60*60*1000);
	UTCstring = Today.toUTCString();
	return UTCstring;
}

function getcookie(cookiename) {
	var cookiestring=""+document.cookie;
	var index1=cookiestring.indexOf(cookiename);
	if (index1==-1 || cookiename=="") return ""; 
	var index2=cookiestring.indexOf(';',index1);
	if (index2==-1) index2=cookiestring.length; 
	return unescape(cookiestring.substring(index1+cookiename.length+1,index2));
}

function setcookie(name, value, duration){
	cookiestring=name+"="+escape(value)+";EXPIRES="+getexpirydate(duration);
	document.cookie=cookiestring;
	if(!getcookie(name)){
		return false;
	} else {
		return true;
	}
}

function showhide(ID)
{
    var el = document.getElementById(ID);
    if (el.className == "show")
    {
        el.className = "hide";
    }
    else
    {
        el.className = "show";
    }
}

function showelement(ID)
{
    var el = document.getElementById(ID);
    el.className = "show";
}