var num=_g().options.form.getWidgetByName("button0");var a = _g().options.form.getWidgetByName("region").getValue();var b = _g().options.form.getWidgetByName("project").getValue();var c = _g().options.form.getWidgetByName("brand").getValue();var d = _g().options.form.getWidgetByName("date").getValue();if (a=='') alert("用户需选择大区")else{var i=encodeURI(encodeURI("${servletURL}?viewlet=测试-商业经营分析看板/移动端页.frm"+"&rejion="+a+"&project="+b+"&brand="+c+"&date="+d));FR.doHyperlinkByPost(i,{},"_self");}这是传参,在这个基础上怎么添加动态标题