/*function made for getting a get variable from querystring*/

/** @example: 
**	<script>
**		var getVariable = queryString(getVariable);
**		alert(getVariable);
**	</script>
*/


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));
}