Prevent Searching For Nothing
If you have a search field on your site, and want to prevent users from searching your site without entering keywords first, use this.
Required Scripts:
When the user clicks the search button, it will run the "enterTerms()" function. If the value of the search field (as identified by it's id) is empty, it will cause an alert box with the specified message, and then return false, causing the search not to run. Otherwise, it will return the submit() function, and search normally.