function newCheckAlitalkInstalled(){
        var obj;
        try{
           obj = new ActiveXObject("AlitalkSetup.Install");
        }
        catch(e){
        }
        if (null!=obj){
          return true;
        } else {
           return false;
        }
    }
function alitalk( infoId,id, isOnline, type, memberLevel){
        //判断浏览者是否安装了贸易通
        if (newCheckAlitalkInstalled()){
            var d = new Date();
            if (document.images) {
                (new Image()).src = "http://china.alibaba.com/others/offeralitalkclick.htm?online="+isOnline+"&type="+type.toLowerCase()+"&member="+memberLevel+"&time="+d.getTime();
            }
            if(type=="product"||type=="company"){
                window.location = "Alitalk:SendIM?"+id+"&url2=http://china.alibaba.com/others/feedbackfromalitalk.html?online="+isOnline+"#type="+type+"#memberLevel="+memberLevel+"#offerId="+infoId+"#time="+d.getTime();
            }else{
                window.location = "Alitalk:SendIM?"+id+"&url1=http://amis1.sh1.china.alibaba.com/potentialContact.dll?offerId="+infoId+"&url2=http://china.alibaba.com/others/feedbackfromalitalk.html?online="+isOnline+"#type="+type.toLowerCase()+"#memberLevel="+memberLevel+"#offerId="+infoId+"#time="+d.getTime();
            }
        }else{
            //提示安装贸易通
            window.target="_blank";
            window.open("http://china.alibaba.com/misc/promotion_down.htm");
        }
    }

function aliclick(u, param) {
    d = new Date();
    if(document.images) {
        (new Image()).src="http://page.china.alibaba.com/stat/stat.html" + param + "&time=" + d.getTime();
    }
    return true;
}

function setCookieAlitalkpopup()
{
    if ( getCookieAlitalkpopup("alitalkpromote") == null )
    {
	var expires = new Date();
	expires.setTime(expires.getTime() + 4*60*60*1000);
	var the_cookie = "alitalkpromote=viewed;path=/;domain=.alibaba.com;expires=" + expires.toGMTString();
    	document.cookie = the_cookie;
    }
}

function getCookieAlitalkpopup(cookieName) {
  var cookieString = document.cookie;
  var start = cookieString.indexOf(cookieName + '=');
  if (start == -1)
    return null;
  start += cookieName.length + 1;
  var end = cookieString.indexOf(';', start);
  if (end == -1) return unescape(cookieString.substring(start));
  return unescape(cookieString.substring(start, end));
}


function newCheckAlitalkInstalled()
{
		var obj;
		try{
		   obj = new ActiveXObject("AlitalkSetup.Install");
		}
		catch(e){
		}
		if (null!=obj){
		  return true;
		} else {
		   return false;
		}
}

function checkAlitalkpopup()
{
   
			if (newCheckAlitalkInstalled())
				{ 
	  		  setCookieAlitalkpopup() ;
	  		  return false;
	     	 }
	  	if ( getCookieAlitalkpopup("alitalkpromote") != null )
	    	{
	    		return false;
	       }  	
   return true;	
}