JavaScript is a simple programming language that's essential to any modern Internet site. Without JavaScript enabled, some Yahoo! features may not perform as designed. To fix this, make sure that you have JavaScript enabled. Here's how:

To enable JavaScript:

Internet Explorer 7, 8, and 9

1. Click Tools | Internet Options.
2. Select the Security tab.
3. Pick the Internet icon (first one).
4. Click the Custom Level button.
5. Look for the "Scripting" section (almost at the bottom) from the "Settings" list.
6. Choose the Enable radio button from the "Active scripting" item.
7. Click OK to close the Security Settings - "Internet Zone" dialog box.
8. Be sure that the Security level is set to Medium or below.
9. Click the OK button to close the "Internet Options" dialog box.
10. Restart IE.

Firefox (versions 3 and above)

1. Click Tools on the menu bar.
2. Select Options.
3. Click the Content tab.
4. Check the Enable JavaScript checkbox.
5. Click the OK button.

Safari (Version 4 and above)

1. Click Settings | Preferences.
2. Click Security.
3. Make sure the options "Enable Java" and "Enable Javascript" are checked.
4. Close the window, so that the settings will be saved automatically.

Google Chrome

WINDOWS

1. Click the  icon on the browser toolbar.
2. Select Settings.
3. At the bottom of the page, click Show advanced settings…
4. Under "Privacy" section, click on Content settings… button.
5. Under the heading JavaScript, select the Allow all sites to run JavaScript (recommended) radio button.
6. Click Done.

MAC

1. Select the Chrome menu item from the Apple/System bar at the top of the screen.
2. Select Preferences...
3. On the left, select Settings.
4. At the bottom of the page, click Show advanced settings…
5. Under Privacy, Click on Content settings… button.
6. Under the JavaScript heading, select the Allow all sites to run JavaScript radio button.
7. Click Done.

If JavaScript is enabled in your browser settings and you're still experiencing issues, please check all of the following possible causes of the error:

• Browser add-ons or extensions that block pop-ups and/or JavaScript
• Security software such as Norton or McAfee
• Other third-party Web-assistance applications such as toolbars or firewall packages that block pop-ups