function detectSize(logPage)
 {
  var ifrm, myWidth = 0, myHeight = 0;
  
  if(typeof(window.innerWidth) == 'number')
   {
    //Non-IE
    myWidth = window.innerWidth;
    myHeight = window.innerHeight;
   }
  else if(document.documentElement && (document.documentElement.clientWidth || document.documentElement.clientHeight))
   {
    //IE 6+ in 'standards compliant mode'
    myWidth = document.documentElement.clientWidth;
    myHeight = document.documentElement.clientHeight;
   }
  else if(document.body && (document.body.clientWidth || document.body.clientHeight))
   {
    //IE 4 compatible
    myWidth = document.body.clientWidth;
    myHeight = document.body.clientHeight;
   }

   ifrm = document.createElement("IFRAME");
   ifrm.setAttribute("src", logPage+"?Width="+myWidth+"&Height="+myHeight);
   ifrm.setAttribute("frameborder", "0");
   ifrm.setAttribute("width", "0");
   ifrm.setAttribute("height", "0");
   document.body.appendChild(ifrm);
 }