function GetXmlHttpObject()
{
var xmlHttp=null;
try
  {
  // Firefox, Opera 8.0+, Safari
  xmlHttp=new XMLHttpRequest();
  }
catch (e)
  {
  // Internet Explorer
  try
    {
    xmlHttp=new ActiveXObject("Msxml2.XMLHTTP");
    }
  catch (e)
    {
    xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");
    }
  }
return xmlHttp;
}

function ajaxImg(pid)
{
	ajaxIm=GetXmlHttpObject();
	url='/main/logimg/'+pid.toString();
	ajaxIm.open("GET",url,true);
	ajaxIm.send(null);
}