Load URL variable from HTML link

    import flash.external.ExternalInterface;
    import flash.net.URLVariables;

    public function readVariable(variable:String):String {
    var fullurl:String = ExternalInterface.call("window.location.href.toString");
    fullurl ? null : fullurl = "";
    var variablesUrl:URLVariables = new URLVariables(fullurl.split("?")[1]);
    variablesUrl[variable] ? null : variablesUrl[variable] = "";
    return variablesUrl[variable];
    }