var u510Path = 'http://www.u510.com/log/' ;
  var u510Log  = 'u510' ;
  var u510Page = 'Home' ;
  var u510Linksrc = '' ;
  var u510ImageFile = '' ;
  var parentURL1 = "" ; 
  var parentURL2 = "" ; 
  var u510ImageOption = '' ;

  var IE4 = (0 <= navigator.userAgent.indexOf('MSIE 4.')) ? true : false ;
  var IE5 = (0 <= navigator.userAgent.indexOf('MSIE 5.')) ? true : false ;
  var IE6 = (0 <= navigator.userAgent.indexOf('MSIE 6.')) ? true : false ;
  var NN4 = (0 <= navigator.userAgent.indexOf('Mozilla/4.') && -1 == navigator.userAgent.indexOf('MSIE ') ) ? true : false ;
  var NN5 = (0 <= navigator.userAgent.indexOf('Mozilla/5.') && -1 == navigator.userAgent.indexOf('MSIE ') ) ? true : false ;
  var referrer2 = new String(document.referrer) ;
  if ( 0 < parentURL1.length ) { if ( ( 0 <= referrer2.indexOf(parentURL1) && parentURL1.length == referrer2.length ) || ( 0 <= referrer2.indexOf(parentURL2) && parentURL2.length == referrer2.length ) ) { referrer2 = new String(parent.document.referrer) ; } }
  if ( 0 < u510Linksrc.length ) { u510Linksrc = "<a href=\"" + u510Path + "showstatistics.cgi?Site=" + u510Log + "\">" ; }
  var u510Imgsrc = "<img src=\"" + u510Path + "loging.cgi?Site=" + u510Log + "&Contents=" + u510Page ;
  if ( 0 < u510ImageFile.length ) { u510Imgsrc = u510Imgsrc + "&Image=" + u510ImageFile ; }
  if (IE4 || IE5 || IE6){
    u510Imgsrc = u510Imgsrc + "&Video=" + window.screen.Width + "x" + window.screen.Height + "x" + window.screen.colorDepth ;
  } else if (NN4 || NN5) {
    u510Imgsrc = u510Imgsrc + "&Video=" + window.screen.availWidth + "x" + window.screen.availHeight + "x" + window.screen.colorDepth ;
  }
  u510Imgsrc = u510Imgsrc + "&Option=" + referrer2 + '"' ;
  if ( 0 < u510ImageOption.length ) { u510Imgsrc = u510Imgsrc + " " + u510ImageOption ; }
  u510Imgsrc = u510Imgsrc + ' border="0" >' ;
  if ( 0 < u510Linksrc.length ) { u510Imgsrc = u510Imgsrc + "</a>" ; }
  document.writeln ( u510Linksrc + u510Imgsrc ) ;