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Text File  |  2010-01-31  |  1.1 KB  |  30 lines
  1. function thumbnailsPrefInit() {
  2.   var isFirefox3 = false;
  3.  
  4.   // Detect version
  5.   var appInfo = Components.classes["@mozilla.org/xre/app-info;1"]
  6.                         .getService(Components.interfaces.nsIXULAppInfo)
  7.   // only if this is Firefox
  8.   var versionChecker = Components.classes["@mozilla.org/xpcom/version-comparator;1"]
  9.                              .getService(Components.interfaces.nsIVersionComparator);
  10.   // only if the platform version is 1.9 or greater
  11.   if (versionChecker.compare(appInfo.platformVersion, "1.9a1") >= 0) {
  12.     isFirefox3 = true;
  13.   }
  14.   
  15.   if (isFirefox3) {
  16.     document.getElementById("useJava").setAttribute("disabled", true);
  17.     document.getElementById("oldResampling").setAttribute("disabled", true);
  18.   } else {
  19.     document.getElementById("preScaling").setAttribute("disabled", true);
  20.   }
  21. }
  22.  
  23. function useJavaChanged() {
  24.   var useJavaCheckbox = document.getElementById("useJava");
  25.   if (useJavaCheckbox.checked && !window.navigator.javaEnabled()) {
  26.     var strings = document.getElementById("prefsStrings");
  27.     window.alert(strings.getString('javaNotInstalled.alert'));
  28.   }
  29. }
  30.