// QueryString
function QueryString(key)
{
	var value = null;
	for (var i=0;i<QueryString.keys.length;i++)
	{
		if (QueryString.keys[i]==key)
		{
			value = QueryString.values[i];
			break;
		}
	}
	return value;
}

function QueryString_Set(key, value)
{
	for (var i=0;i<QueryString.keys.length;i++)
	{
		if (QueryString.keys[i]==key)
		{
			QueryString.values[i] = value;
			return;
		}
	}
	QueryString.keys[QueryString.keys.length] = key;
	QueryString.values[QueryString.values.length] = value;		
}

QueryString.keys = new Array();
QueryString.values = new Array();

function QueryString_Parse()
{
	var query = window.location.search.substring(1);
	var pairs = query.split("&");
	
	for (var i=0;i<pairs.length;i++)
	{
		var pos = pairs[i].indexOf('=');
		if (pos >= 0)
		{
			var argname = pairs[i].substring(0,pos);
			var value = pairs[i].substring(pos+1);
			QueryString.keys[QueryString.keys.length] = argname;
			QueryString.values[QueryString.values.length] = value;		
		}
	}
}



function GetUrl()
{
	url = window.location.protocol + "//" + window.location.host + window.location.pathname;
	if (QueryString.keys.length > 0)
	{
		for (var i=0;i<QueryString.keys.length;i++)
		{
			if (i == 0)
			{
				url = url + "?" + QueryString.keys[i] + "=" + QueryString.values[i];
			}
			else
			{
				url = url + "&" + QueryString.keys[i] + "=" + QueryString.values[i];
			}
		}
	}
	return url;
}
QueryString_Parse();