var javawsInstalled = 0;
  var javaws142Installed=0;
  var javaws150Installed=0;
  var javaws160Installed = 0;
  isIE = "false";
  if (navigator.mimeTypes && navigator.mimeTypes.length) {
     x = navigator.mimeTypes['application/x-java-jnlp-file'];
     if (x) {
        javawsInstalled = 1;
        javaws142Installed=1;
        javaws150Installed=1;
        javaws160Installed = 1;
    }
  }
  else {
     isIE = "true";
  }