jq(window).bind('beforeunload',function(){
    if (true) {
         //do something 
         return "are you sure leaving"
    } else {
         // do something else
    }
})

var tabbarcloseId = parent.xtabbar.tabbar.attachEvent("onTabClose", function(id){
	if(id==parent.activeId){
		alert("close");
		return false;
	}else{
		return true;
	}
})
alert(parent.activeId);
//parent.xtabbar.tabbar.detachEvent(tabbarcloseId);




function refreshTab(){
	alert("refresh");
	alert(activeId);
	if(xtabbar.tabbar.getActiveTab() == activeId){
		alert(activeId);
	}else{
		xtabbar.tabbar.forceLoad(xtabbar.tabbar.getActiveTab());
	}
}