function gup( name, str ){  
		name = name.replace(/[\[]/,"\\\[").replace(/[\]]/,"\\\]");  
		var regexS = "[\\?&]"+name+"=([^&#]*)";  
		var regex = new RegExp( regexS );  
		var results = regex.exec( str );  
		if( results == null )    
			return "";  
		else    
			return results[1];
	}