function chkdiv(divid){
var chkid=document.getElementById(divid);
if(chkid != null){return true; }
else {return false; }
}
if (chkdiv('support'))
{document.getElementById('support').innerHTML='';}
function uservote(str) {
//创建XMLHttpRequest对象
var xmlhttp;
try{
xmlhttp=new XMLHttpRequest();
}catch(e){
xmlhttp=new ActiveXObject("Microsoft.XMLHTTP");
}
//创建请求结果处理程序
xmlhttp.onreadystatechange=function(){
if (4==xmlhttp.readyState){
if (200==xmlhttp.status){
var content=xmlhttp.responseText;
//alert('投票成功!感谢您的支持!');
switch(content){
case "0":
alert("您没有登陆,请先登陆");
break;
case "1":
alert("请先下载该资源在投票");
break;
case "2":
alert("投票成功!感谢您的支持!");
var support = document.getElementById('show_1').innerHTML;
support++ ;
document.getElementById('show_1').innerHTML=support;
break;
case "3":
alert("投票成功!感谢您的支持!");
var support = document.getElementById('show_0').innerHTML;
support++ ;
document.getElementById('show_0').innerHTML=support;
break;
case "4":
alert("已经参与过了");
break;
case "5":
alert("网络故障,请稍后重试1。");
break;
}
//document.getElementById('show_'+str).innerHTML=content;
}else{
alert('网络故障,请稍后重试。');
}
}
}
//打开连接,true表示异步提交
xmlhttp.open("post", "/Down/include/UserVote.asp", true);
//当方法为post时需要如下设置http头
xmlhttp.setRequestHeader('Content-type','application/x-www-form-urlencoded');
//发送数据
xmlhttp.send("ID="+escape(2143121)+"&action="+escape(str));
}