function SetCookie(cookieName,cookieValue,nDays) {
 var today = new Date();
 var expire = new Date();
 if (nDays==null || nDays==0) nDays=1;
 expire.setTime(today.getTime() + 3600000*nDays);
 document.cookie = cookieName+"="+escape(cookieValue) + ";path=/;domain=.163.com;expires="+expire.toGMTString();
}
function Get(namex){
  var cookieString = new String(document.cookie)
  var cookieHeader = namex + "="
  var beginPosition = cookieString.indexOf(cookieHeader)
  if (beginPosition != -1){
    cookieString = cookieString.substring(beginPosition + cookieHeader.length);
    if (cookieString.indexOf(";")>-1){
     cookieString = cookieString.substring(0, cookieString.indexOf(";"));
    }
    return unescape(cookieString);
  }
  return "";
}
function getElement(aID)
{
  return (document.getElementById) ? document.getElementById(aID): document.all[aID];
}
function makeRequest(url){
  http_request=false;
  if(window.XMLHttpRequest){//Mozilla,Safari,...
     http_request=new XMLHttpRequest();
     if(http_request.overrideMimeType){
     http_request.overrideMimeType('text/xml');
   }
 }else if(window.ActiveXObject){//IE
   try{
   http_request=new ActiveXObject("Msxml2.XMLHTTP");
   }catch(e){
   try{
         http_request=new ActiveXObject("Microsoft.XMLHTTP");
     }catch(e){}
     }
 }
 if(!http_request){
     alert('Giving up:(Cannot create an XMLHTTP instance)');
     return false;
 }
 return http_request;
}
function diggit(id,diggnum)
{
    if (document.cookie)
    {
        var dugg = Get("duggid");
        if (dugg!="")
        {
            re = new RegExp("-" + id + "#" + diggnum + "#-", "ig");
            if (re.test(dugg))
            {
                re2 = new RegExp(id + "-", "ig");
                var c = dugg.replace(re2, "");
                SetCookie("duggid", c,1);
            }
            else
            {
                SetCookie("duggid", dugg + id + "#" + diggnum  + "#-",1);
            }
        }
        else
        {
            SetCookie("duggid", "-" + id + "#" + diggnum  + "#-",1);
        }
    }
    else
    {
        SetCookie("duggid", "-" + id + "#" + diggnum + "#-",1);
    }
    return true;
}
function hc(boardid,diggid,surl){
    var olddigg = getElement("span_"+diggid).innerHTML;
    getElement("span_"+diggid).innerHTML = '<img src="http://cimg2.163.com/cnews/img07/newswj/loading.gif" width="25" height="25" />';
    var url = "http://tech.163.com/dugg/"+boardid+"/"+diggid;    
    var xhttp=makeRequest();
    xhttp.onreadystatechange=function(){
        if(xhttp.readyState == 4 && (xhttp.status==200 || window.location.href.indexOf("http")==-1))
        {                              
            var res = decodeURIComponent(xhttp.responseText);
            if (res.indexOf("error")>-1)
            {
                getElement("span_"+diggid).innerHTML = olddigg; 
            }
            else
            if (res.indexOf("err:")>-1)
            {
                alert(res.replace("err:", ""));
                getElement("span_"+diggid).innerHTML = olddigg; 
            }
            else
            {
                getElement("span_"+diggid).innerHTML = res; 
            }
            getElement("h_"+diggid).innerHTML = '<a href="'+surl+'">查看</a>'; 
                var diggnum = xhttp.responseText;
                   diggit(diggid,diggnum);                
        }
    }
    xhttp.open("GET",url,true);
    xhttp.send(null);
}