/*
* All credits to: http://www.eggheadcafe.com/articles/20020107.asp
*/


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)
	{
		var page = new PageQuery(window.location.search); 
		return unescape(page.getValue(key)); 
	}
	
	function displayItem(key)
	{
		if(queryString(key)=='false') 
		{
			document.write("you didn't enter a ?name=value querystring item.");
		}
		else
		{
			document.write(queryString(key));
		}
	}
}