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";
}