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 false;
	}

	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));
	}
}