// General functions

 function popup(caption, url, width, height)
    {
        var theTop=(screen.height/2)-(height/2);
        var theLeft=(screen.width/2)-(width/2);
        var features= 'height='+height+',width='+width+',top='+theTop+',left='+theLeft+',scrollbars=no,resizable=no,status=no,dialogHide=yes,location=no';
        theWin=window.open(url,'',features);
    }
    
//
// 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;
}
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;
		}
	}

}