header error with search function?

[minuteago]

In the catalog/includes/header.php, I added these codes for adding a small search box which is orignally located at the left side menu.

 

 

 

<font size=1><b>Search:</b></font size=1> <?php echo tep_draw_form('advanced_search', tep_href_link(FILENAME_ADVANCED_SEARCH_RESULT, '', 'NONSSL', false), 'get'). tep_draw_hidden_field('search_in_description','1') . tep_draw_input_field('keywords','','size="10" maxlength="30" style="width: ' . (BOX_WIDTH-30) . 'px"')?>
   <input type="image" src="includes/languages/english/images/buttons/button_search.gif" border="0" alt="Quick Find" title=" Quick Find "></form>

 

 

 

The problem by adding these codes is I can't use dropdown manufactuerer box right below the categoreis box. If I choose FOX, the advanced search page comes up and shows me an error message like

 

At least one of the fields in the search form must be entered.

 

 

If I type any single word in a search criteria box, then it will find any product starting with the word I just type within the FOX category..

 

Why does this happend? the coding is not correct?

If I re-install the orignal header.php file, then it works the way it does..

 

 

Can anyone tell me what is wrong with this?

 

 

 

thanks.

[minuteago]

anyone has an idea?