function QueryString(queryStringName)
{
	var returnValue="";
	var URLString=new String(document.location);
	var serachLocation=-1;
	var queryStringLength=queryStringName.length;
	do
	{
		serachLocation=URLString.indexOf(queryStringName+"\=");
		if (serachLocation!=-1)
		{
			if ((URLString.charAt(serachLocation-1)=='?') || (URLString.charAt(serachLocation-1)=='&'))
			{
				URLString=URLString.substr(serachLocation);
				break;
			}
			URLString=URLString.substr(serachLocation+queryStringLength+1);
		}
	}
	while (serachLocation!=-1)
		if (serachLocation!=-1)
		{
			var seperatorLocation=URLString.indexOf("&");
			if (seperatorLocation==-1)
			{
				returnValue=URLString.substr(queryStringLength+1);
			}
			else
			{
				returnValue=URLString.substring(queryStringLength+1,seperatorLocation);
			}
		}
	return returnValue;
}