There are two ways to enable/disable java scripts in Internet Explorer
First Way:
From the Tools Menu, or the Tools drop-down in the upper right, select Internet Options
Next, select the Programs Tab and click on "Manage add-ons"
Highlight the Java Plug in and click either Enable or Disable in the lower right hand corner. Then click Close.
Second Way:
From the Tools Menu, or the Tools drop-down in the upper right, choose Internet Options
Click the Security tab and select Custom Level
Scroll to the "Scripting" section of the list. Click Disable or Enable
Close and restart your browser.