var appName = "jsm_ask";
var g_isLogin = false;

function isEmptyString(str)
{
	if(str != null)
	{
		for(var i = 0;i< str.length; i++)
		{
			var c = str.charAt(i);
			if(c != ' ')
			{
				return false;
			}
		}
	}
	return true;
}

function BindEvent(o, eventName, handler)
 {
 	if (window.attachEvent)
 	{
 		o.attachEvent("on" + eventName, handler);
 	}
 	else
 	{
 		o.addEventListener(eventName, handler, false);
 	}
 }
 
 function UnBindEvent(o, eventName, handler)
 {
 	if (window.detachEvent)
 	{
 		o.detachEvent("on" + eventName, handler);
 	}
 	else
 	{
 		o.removeEventListener(eventName, handler, false);
 	}
 }
 
 function _keepTop()
 {
	var regExp = /\uFEFF/;
	var innerHTML = document.body.innerHTML;
	while(innerHTML.match(regExp) != null)
	{
		innerHTML = innerHTML.replace(/\uFEFF/, '');
	}
	document.body.innerHTML = innerHTML;
	document.body.style.display = "block";
 }
 
 document.body.style.display = "none";
 
 BindEvent(window, "load", _keepTop);