//
// QueryString() Function for JavaScript
//       written by VGurgov
//
// Example - on QueryString: "?name=Mike&age=20"
//   QueryString("name") is "Mike"
//   QueryString("age") is "20"
//

function QueryString(name)
{
	var qs=(location.search).substring(1, (location.search).length);
	if(qs=="") 
		return null; //return "" if no querystring

	var names=new Array(), values=new Array();
	var items=new Array(), temp=new Array();
	
	var items=qs.split("&"); //make an array of items
	var total=items.length; //total number of items

	for(var i=0; i<total; i++)
	{
		temp=items[i].split("="); //split each item
		names[i]=temp[0]; //collect info
		values[i]=temp[1]; // collect info
	}

	for(i=0; i<total; i++) //look for name in names[]
		if(names[i]==name)
			return values[i]; //if found, return corresponding item from values[]
	return null;
}