function MM_openBrWindow(theURL,winName,features,l,h) { //v2.0
 features=features + ",width="+l+",height="+h
 if (screen.height) {
  var top = (screen.height-h)/2;
  var left=(screen.width-l)/2;
  features=features+",top="+top+",left="+left;
 }
 window.open(theURL,winName,features );
}
function getQueryString(index)
		{
			var paramExpressions;
			var param
			var val
			paramExpressions = window.location.search.substr(1).split("&");
			if (index < paramExpressions.length)
			{
				param = paramExpressions[index]; 
				if (param.length > 0) {
					return eval(unescape(param));
				}
			}
			return ""
		}