var xmlhttp;
var clickLogOK = false;

function createXMLHttp()
{
	if (window.XMLHttpRequest)
	  {// code for IE7+, Firefox, Chrome, Opera, Safari
	  xmlhttp=new XMLHttpRequest();
	  }
	else
	  {// code for IE6, IE5
	  xmlhttp=new ActiveXObject("Microsoft.XMLHTTP");
	  }
}

createXMLHttp();

function doImLog() {
	try
	{
		if(!!xmlhttp)
		{
			xmlhttp.open("GET", "http://icc-tongji.tnt.com.cn/DoLog.aspx", true);		
			xmlhttp.onreadystatechange = clickLogCallBack;
			xmlhttp.send();
		}
	}
	catch (e)
	{
	}	 
	setTimeout( function() {
		var isIE=!!window.ActiveXObject; 
		var isIE6=isIE&&!window.XMLHttpRequest; 
		if(!clickLogOK && isIE6)
		{
			var clickelogiframe = document.getElementById('clickelogiframe');
			if(!clickelogiframe)
			{
				document.body.innerHTML=document.body.innerHTML+"<iframe id='clickelogiframe' style='display:none;' src='http://icc-tongji.tnt.com.cn/DoLog.aspx' />";
			}
			else
			{
				document.body.removeChild(clickelogiframe);
				document.body.innerHTML=document.body.innerHTML+"<iframe id='clickelogiframe' style='display:none;' src='http://icc-tongji.tnt.com.cn/DoLog.aspx' />";
			}
		}
	}, 5000);
}

function clickLogCallBack(){
	if(4 == xmlhttp.readyState) {
		if(200 == xmlhttp.status) clickLogOK=true;		
	}
}