CRM 2011 Refreshing a Web Resource/Webpage On A Form

I have problem with refreshing a custom webpage.

Below will be the function i use to refresh the webpage on particular trigger point.

var someOnchangeEvent = function(){

    var wrControl = Xrm.Page.ui.controls.get("nameofwebresoucecontrol");

    wrControl.setSrc(wrControl.getSrc());

}