browserName = navigator.appName;
browserVer = parseInt(navigator.appVersion);


function getbodywidth()
   {

    if((browserName == "Netscape" || browserName == "Mozilla") && browserVer>= 3 && browserVer< 5)
      {
       // Netscape
       return(parent.document.body.innerWidth);
      }
     else if (((browserName == "Microsoft Internet Explorer") && (browserVer >=4)) || ((browserName == "Netscape" || browserName == "Mozilla") && (browserVer>= 5)))
      {
       // IE4+ or Mozilla
        return(parent.document.body.clientWidth);
      }
     else if((browserName == "Microsoft Internet Explorer") && browserVer >=4 && parent.document.compatMode=="CSS1Compat")
      {
       // IE6
       return(parent.document.documentElement.clientWidth);
      }
   }

function getbodyheight()
   {

    if((browserName == "Netscape" || browserName == "Mozilla") && browserVer>= 3 && browserVer< 5)
      {
       // Netscape
       return(parent.document.body.innerHeight);
      }
    else if (((browserName == "Microsoft Internet Explorer") && (browserVer >=4)) || ((browserName == "Netscape" || browserName == "Mozilla") && (browserVer>= 5)))
      {
       // IE4+ or Mozilla
       return(parent.document.body.clientHeight);
      }
    else if((browserName == "Microsoft Internet Explorer") && browserVer >=4 && parent.document.compatMode=="CSS1Compat")
      {
       // IE6
       return(parent.document.documentElement.clientHeight);
      }
   }