How to Enable and Update JavaScript in Netscape and Internet Explorer

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NOTICE: Please read this entire document before attempting any changes on your computer. If you do not feel confident in what you are doing on your computer, then contact a professional computer technician to diagnose your problem. We are not responsible for problems that may arise by you implementing any of the following procedures. Some information on this page may be obsolete.

What is JavaScript?

Windows XP, Vista, Me, NT, 2000, 98, or 95:
Java Plug-in makes it possible for your computer (including Windows XP, Vista, Me, NT, 2000, 98, or 95) to run applets, small applications that add tremendous power to the convenience of the Web. Applets run on just about any computer because most come with Java software already installed. But some do not, and older computers may have an out-of-date version. JavaTM technology is everywhere: from the tiniest cell phones to the biggest servers. It can also be on your computer and at your service. To bring your system to the leading edge, get Java Plug-in. (For Windows XP, Me, NT, 2000, 98, or 95).

Enabling JavaScript:

If you are unsure of the browser version that you are using, choose "Help" from your browser menu, then choose "About Netscape" or "About Internet Explorer."

Mozilla Firefox (1.0 final release and earlier) 

• Go to the "Tools" menu. 

• Select "Options". 

• Select the "Privacy" icon in the left panel. 

• Check the box corresponding to "Allow sites to set cookies". 

• Click "OK" to save changes. 

Netscape Navigator v3.0 (Windows and Macintosh)

• Choose Options from the top menu bar.

• Select the item Network Preferences.

• Click on the Languages tab.

• Check Enable JavaScript.

• Click OK to save the changes.

Netscape Navigator v4.0 (Windows and Macintosh)

• Choose Edit from the top menu bar.

• Select the item Preferences.

• In the category list, click Advanced.

• Click box for Enable JavaScript, if not already checked.

• Click OK to save the changes.

Netscape 7.1/Mozilla 5.0 

• Select "Preferences" from the Edit menu. 

• Click on the arrow next to "Privacy & Security" in the scrolling window to expand. 

• Under "Privacy & Security", select "Cookies." 

• Select "Enable all cookies". 

• Click "OK". 

Internet Explorer v4.0 (Windows)

• Choose View from the top menu bar.

• Select the item Internet Options.

• Click the Security tab.

• Click radio button for Custom, and then click the Settings button.

• Scroll down to Scripting/Active Scripting.

• Click Enable.

• Click OK to save the changes.

• Click OK again to save and return to Internet Explorer.

Internet Explorer v4.0 (Macintosh)

• Choose Edit from the top menu bar.

• Select the item Preferences.

• Select Web Browser.

• Select Web Content.

• In active Content section, click the Enable Scripting checkbox.

• Click OK to save the changes.

• Click OK again to save and return to Internet Explorer.

Internet Explorer v5.0 (Windows)

• Choose View from the top menu bar.

• Select the item Internet Options.

• Click the Security tab.

• Click radio button for Custom, and then click the Settings button.

• Scroll down to Scripting/Active Scripting.

• Click Enable.

• Click OK to save the changes.

• Click OK again to save and return to Internet Explorer.

Microsoft Internet Explorer 5.x 

• Select "Internet Options" from the Tools menu. 

• Click on the "Security" tab. 

• Click the "Custom Level" button. 

• Scroll down to the "Cookies" section. 

• To enable: 

• Set "Allow cookies that are stored on your computer" to "Enable". 

• Set "Allow per-session cookies" to "Enable". 

• Click "OK". 

Microsoft Internet Explorer 6.0 

• Select "Internet Options" from the Tools menu. 

• Click on the "Privacy" tab. 

• Click the "Default" button (or manually slide the bar down to "Medium") under "Settings". 

• Click "OK". 

Microsoft Internet Explorer 7.0 

• Select "Internet Options" from the Tools menu. 

• Click on the "Privacy" tab. 

• Manually slide the bar down to "Medium" under "Settings". 

• Click "OK". 

Microsoft Internet Explorer 8.0

• Select "Internet Options" from the Tools menu. 

• Click on the "Privacy" tab. 

• Manually slide the bar down to "Medium" under "Settings". 

• Click "OK". 

What if JavaScript Doesn't Work?

After you have tried the options listed above (enable java in your browser) and then rebooted your computer, if your java applications still don't work, then come back to this page and Download Microsoft Virtual Machine for Internet Explorer

Download Microsoft's Virtual Machine

Virtual Machine can not be removed once it has been installed

After you have tried the options listed below (enable java in your browser) and then reboot your computer, if your java applications still don't work, then come back to this page and go to the Sun Microsystems Java web site and download the latest version of the Java Plug-in. (for Windows XP, Me, NT, 2000, 98, or 95)

Do I have Java?

DO NOT install both Microsoft Virtual Machine AND Sun's Java plug-in.  If you downloaded and installed both Microsoft Virtual Machine AND Sun's Java Plug-in, you may experience a conflict. This will appear as an irratic mouse pointer (when viewing virtual tours for example). In this case, go to your Java Console (click the icon in your control panel) and disable java for Netscape or Internet Explorer. Or go to your Control Panel and remove Java Plug-in by clicking the Add/Remove Programs icon.

A Note to Netscape 4x users who have updated their browser online:  If you have updated your Netscape Browser via Netscape's online upgrade option (rather then by CD-ROM), then you may experience java related problems. If so, use the Netscape® Communicator 4.7 CD to reinstall Netscape.  Then your java should work again.

Another Netscape Tip: Sometimes if you can't get a 360° Virtual Tour rotating panorama java applet to work, you may need to close your browser or even reboot and then it should be fine.

Java and all Java-based marks are trademarks or registered trademarks of Sun Microsystems, Inc., in the United States and other countries. Merck & Co., Inc., is independent of Sun Microsystems, Inc. Netscape Navigator is a registered trademark of Netscape Communications Corporation in the United States and other countries. Windows is a registered trademark of Microsoft Corporation. Macintosh is a trademark of Apple Computer, Inc., registered in the United States and other countries. Please read this entire document before attempting any changes on your computer. We are not responsible for problems that may arise by you implementing any of the following procedures. If you do not feel confident in what you are doing with your computer, then contact a computer technician to diagnose your problem.