var postBackElementID;
var listUpdating;

function pageLoad() {
	var manager = Sys.WebForms.PageRequestManager.getInstance();
	manager.add_beginRequest(beginRequest);
	manager.add_pageLoaded(pageLoaded);
}

function beginRequest(sender, args) {
	postBackElementID = args.get_postBackElement().id.substring(args.get_postBackElement().id.lastIndexOf("_") + 1);

	if (postBackElementID.toString() == "LVIdeaListPager" || postBackElementID.toString() == "LBReturn") {
	    listUpdating = 1;
	}
	if (postBackElementID.toString() == "zLBReturn") {
	    listUpdating = 0;
	}
}

function pageLoaded(sender, args) {
	if (listUpdating == 1) {
	    GoToTop();
	    listUpdating = 0;
	}

}
function GoToTop() {
    $('html, body').animate({ scrollTop: '0px' }, 500);
}