Follow the following steps to enable the Javascript for full functionality :-
For IE (Internet Explorer) -
1. On the Tools menu, click Internet Options, and then click the Security tab.
2. Click the Internet zone.
3. If you do not have to customize your Internet security settings, click Default Level. Then do step 4 If you have to customize your Internet security settings, follow these steps:
  a. Click Custom Level.
  b. In the Security Settings – Internet Zone dialog box, click Enable for Active Scripting in the Scripting section.


For Mozilla Firefox -
1. On the Tools menu, click Options. 2. On the Content tab, click to select the Enable JavaScript check box.
3. Click the Go back one page button to return to the previous page, and then click the Reload current page button to run scripts.


For Google Chrom -
1. Click the Chrome menu on the browser toolbar.
2. Select Settings.
3. Click Show advanced settings.
4. In the "Privacy" section, click Content settings button.
5. Then javascript