var a=_g().getWidgetByName("控件名1").getValue();
var b=_g().getWidgetByName("控件名2").getValue();
var url="/webroot/decision/view/report?viewlet=GettingStarted.cpt&op=write&a="+a+"&b="+b;
//或者这个格式 var url="${servletURL}?viewlet=GettingStarted.cpt&op=write&a="+a+"&b="+b;
var url = FR.cjkEncode(url);
window.open (url, '_self')