Advanced Search suddenly stopped working: blank page

Hello,

I am trying to figure ot what I did to my advanced search result page that makes it throw up a blank page if I leave the search field blank or enter a term not in the site.

The search works fine if the word is found. However, If it is not found or blank then it is supposed to throw up the error like :
"There is no product that matches the search criteria."

This is a nice java script validation that comes from includes/modules/pages/advanced_search/jscript_main.php

However I think broke it possibly by adding the google plus one or the newer js library for a jquery slider. Or maybe its something else.

Maybe I am on the wrong track entierly.

Anyone else have a common problem/answer to this in their travels?

Nadia

I fixed it. I went to the cache folder on my server and ftp the last error log to editor and read it. That lead me to the php page with the error. It was the common extra blank line at the end of the page trick. I have no idea how I put an extra line at the bottom of the page but sometimes dreamweaver tries to help by adding lines so I blame dreamweaver ;) .