var request2 = false;
try {
 request2 = new XMLHttpRequest();
} catch (trymicrosoft) {
 try {
 request2 = new ActiveXObject("Msxml2.XMLHTTP");
 } catch (othermicrosoft) {
 try {
 request2 = new ActiveXObject("Microsoft.XMLHTTP");
 } catch (failed) {
 request2 = false;
 }
 }
}
if (!request2)alert("Error initializing XMLHttpRequest!");
//获取信息
var hitsNum = 0;
function hits(modType,id) {

 var url =  "/ajax/hits.asp?modType="+modType+"&id="+id;
 request2.open("GET", url, true);
 request2.onreadystatechange = updateHits;
 request2.send(null);
 
}

//更新页面
function updateHits() {
 if (request2.readyState == 4) 
 {
 if (request2.status == 200) {
 var response = request2.responseText;
 if(document.all.hitsNum){
	 document.all.hitsNum.innerHTML = response;
  }
 } else
 alert(request2.status + "错误");
 } 
}