function getUrlVars() { 
	var map = {}; 
	var parts = window.location.search.replace(/[?&]+([^=&]+)(=[^&]*)?/gi, function(m,key,value) { map[key] = (value === undefined) ? true : value.substring(1); }); 
	return map; 
	}
	
var urlVars=getUrlVars();
//access via parent.urlVars