From the Tools menu, select Internet Options... and then the Security tab.

If your zone security level is set to "Medium", you will need to make a small modification before JavaScript will function correctly. To enable JavaScript, first click "Custom Level..." and then "Enable Active Scripting", located within the "Scripting" section of the Custom Level window. (Always consult your System Administrator before changing browser security settings)

If your Internet Explorer security level is set to "High", Java applet scripting is disabled. This feature must be enabled, otherwise you will receive an error alert message ("An ActiveX control on this page is not safe...") over a running applet. You can enable Java applet scripting by clicking "Custom Level", resetting the security configuration to "High", and then clicking "Enable Active Scripting", "Scripting of Java Applets" (both in the "Scripting" section) and "Script ActiveX Controls Marked Safe for Scripting" (in the "ActiveX controls and plug-ins" section). For IE 6.x users, you may also have to enable Java as well ("Microsoft VM:Java Permissions").

Enabling Java

If Java (not to be confused with JavaScript) itself doesn't work, there are two main causes:

1) Java has not been installed. If you do not see a "Microsoft VM" section under Custom settings, Java has not been installed. This can be confirmed by checking the Advanced tab, which will also have no "Microsoft VM"  and "Java (sun)" section. The symptom in this case is a broken plug-in icon in a gray box where the applet should be. If Java is not installed, consider installing Sun Microsystem's Java  plug-in; see the instructions below for Java Plug-in.

2) Java has been disabled by means of a Custom Security configuration. The symptom is the same error alert "An ActiveX control on this page is not safe..." mentioned above, except in this case the applet does not run. To enable Java, select "Low safety" from the "Microsoft VM : Permissions" section of Custom Security settings. For IE 6.x users, you may also need to enable the "Run ActiveX controls and plug-ins" (in the "ActiveX controls and plug-ins" section).

We strongly recommend installing the Browser Control. Browser Control copies applets locally, thereby dramatically reducing the time it takes an equation to load. See the instructions below for Browser Control.

From the Edit menu, select Preferences... and then the "Advanced" category. It is not necessary to open the sub-categories under Advanced - selecting "Advanced" itself will bring up a panel from which both Java and JavaScript can be enabled or disabled. Both must be enabled for maximum compatibility with Analog Devices tools. It is not necessary to enable JavaScript for Mail & Newsgroups.

In addition, it is strongly recommended to install the Browser Control (that will copy the applets in locally), and therefore will dramatically reduce the time to load the equation editor during the course of taking tests; see the instruction below for Browser Control.

Problems with resizing in Navigator 4.X

Navigator 4.X is known to have a bug with window resizing and DHTML in which content sometimes disappears. User has to  reload the page when they resize the window. Unfortunately, entered form data may be lost. 

Enabling Java and JavaScript - Edit: Preferences: Advanced

From the Edit menu, select Preferences... and then the "Advanced" category. It is not necessary to open the sub-categories under Advanced - selecting "Advanced" itself will bring up a panel from which both Java and JavaScript can be enabled or disabled. Both must be enabled for maximum compatibility with Analog Devices tools. It is not necessary to enable JavaScript for Mail & Newsgroups.

The default ("Recommended") download installation of Netscape 6.x does NOT include Java, which must be downloaded and installed separately. Selecting the "Full" Netscape 6 installation option DOES include Java.

A symptom of a Java-less browser is a broken plug-in icon in the gray box where the applet should be, or no applet at all. If Java is not installed, please consider  installing Sun Microsystem's Java  plug-in; see the instructions below for Java Plug-in.

Problems with Browser Control in Netscape 6.X and above

Netscape Navigator 6.x and above has known bugs that will prevent the user from using LiveConnect, if Browser Control is installed. Thus it is necessary for a user not to install Browser Control if using Netscape Navigator 6.x and above. Do not install Browser Control if you are using Netscape Navigator 6.x and above.

If Java is not installed, both Internet Explorer and Netscape Navigator will prompt for the installation of a plug-in - either their own, or Sun's Java 2 plug-in. Please consider installing Sun's Java plug-in, since it has buit-in caching capability. If automatic installation doesn't work, the plug-in can be downloaded independently from Sun's plug-in site (J2SE JRE download ONLY) or from here. Follow the instructions given in the installation process.

Equation Editor tries to use whatever Java Run Time is the default for the browser. If that is unavailable, they expressly try to use a plug-in Java Virtual Machine (JVM). In more recent versions of Windows, the Java Plug-in Control Panel allows you to choose whether to use a plug-in in IE6 or NS6. Also, if you have multiple JVM's installed, you can select which one is active.

Additional requirements for plug-in use:

Internet Explorer 4.X - 6.X
Under Security, "Run ActiveX controls and plug-ins" must be enabled, as should "Script ActiveX controls marked safe for scripting". These settings are automatically enabled when "Medium" or "Low" security is selected. "High" security settings will need to be customized (see above). To use the plug-in for all applets, "Use Java 2..." must be checked under "Java (Sun)" in the Advanced panel.

Netscape 4.X
Later versions (4.78+) of Netscape 4 specially recognize the Java plug-in and provide a separate checkbox in the Advanced settings to enable and disable it. If both the regular VM and plug-in are installed and this box is checked, the plug-in Java interpreter will be used. If the box is unchecked, the built-in interpreter is used. If the plug-in is installed and no internal JVM is found, the plug-in is used. However, plug-in Java is incompatible (in Netscape 4) with LiveConnect scripting, preventing some calculator features from working.

Java applets are designed to be automatically downloaded with HTML pages, and run in a Web browser. In practice, however, downloading applets over real-world network connections is slow and somewhat undependable. The WebEQ Browser Control is approximately 500KB, which takes 3 minutes or more over a 28.8 kbs modem line.

Caching helps alleviate the problem of slow connection, but caching Java applets is complicated and doesn't work very well. Users may occasionally find their browsers downloading the applets several times in a single browser session.

The best solution to slow downloading and poor caching is to have users install the WebEQ Browser Control locally into their Web browsers.

Once the installation is complete, the Web browser will use the local copy of the WebEQ applets. In general, a Web browser encountering a page using the WebEQ applets will check its local files to see if the WebEQ applets have been installed. If it finds the local files, the browser uses them. If it doesn't find them locally, it then attempts to download the necessary program files from the server. In this way, users who have the Browser Control installed and those who don't can both read a page that makes use of the WebEQ applets. The only difference is that the user who does not have the Browser Control installed has to wait longer.

Checking Browser Control

Check if the Browser Control has already been installed on your browser by clicking here.

Installing Browser Control

Not all versions of all browsers support automated installation procedures. If automatic installation is not available, users can, however, install the WebEQ Controls manually. You can find more information about downloading Browser Control  from here.

Removing Browser Control

Click here to learn how to manually remove Browser Control.

Problems with Browser Control in Netscape 6.X and above

Netscape Navigator 6.x and above has known bugs that will prevent the user from using LiveConnect, if Browser Control is installed. Thus it is necessary for a user not to install Browser Control if using Netscape Navigator 6. Do not install Browser Control if you are using Netscape Navigator 6 and above.