function isViewletCompliant()
{
  answer=true;
  version=Math.round(parseFloat(navigator.appVersion) * 1000);
  if (navigator.appName.substring(0,9) == "Microsoft")
  {
    if(version<4000) answer=false;
  }
  if (navigator.appName.substring(0,8) == "Netscape")
  {
    if ((navigator.appVersion.indexOf("Mac")> 0) && (version<5000))
      answer=false;
    else
    if (version<4060)
      answer=false;
  }

  plugins=navigator.plugins;
  if (answer==false && plugins!=null)
  {
    for(i=0;i!=plugins.length;i++)
    if((plugins[i].name.indexOf("Java Plug-in")>=0) && (plugins[i].name.indexOf("1.0")<0))
    answer=true;
  }
  return answer;
}

function openViewlet(htmlFile,htmlWidth,htmlHeight)
{
  str = 'resizable=0,toolbar=0,menubar=0,';
  str = str + 'scrollbars=0,status=0,location=0,directory=0,width=350,height=200';

  version=Math.round(parseFloat(navigator.appVersion) * 1000);

  if(navigator.appName.indexOf("Konqueror")!=-1) // konqueror
  {
    htmlWidth+=18;
    htmlHeight+=96;
  }

  if(navigator.appName.indexOf("Netscape")!=-1)
  {
    if(version>=5000)
    {
      if(navigator.appVersion.indexOf("Mac")!=-1) // Netscape6+ on mac
      {
        htmlHeight+=5;
      }
    }
  }

  if(navigator.appName.indexOf("Microsoft")!=-1)
  {
    if(navigator.appVersion.indexOf("Mac")!=-1) // IE on Mac
    {
       htmlWidth  -= 11;
       htmlHeight -= 11;
    }
  }

    if(!isViewletCompliant())
    {
      open("http://www.qarbon.com/warning/index.html",'Leelou',str);
    }
    else
    {
      window.open(htmlFile,'Leelou','width='+htmlWidth+',height='+htmlHeight+',top=30,left=60');
    }

}