OSCOMMERCE :: Customization of Quick Search Form

I have customized my store's look through STS. It seems everything working fine. Except My 'Quick Search Product' section. I don't want to uses search box in template and for this I have written the following code in my header template file where the search field will appear:

<form name="quick_find" method="get" action="<?php echo tep_href_link('advanced_search_result.php');?>">
        <div class="search_fild">
        <input type="text" class="search_fild_in"  />
        </div> 
        <div class="search_button">
        <input type="image" name="submit" src="$templatedir$/images/search_buton.jpg" />
        </div>

 </form>

Code (markup):

Now after submission of the form the page is redirected to the Advance search page but no search item is pulled on. When I see the URL, I found like this and there is no keywords (I entered in the form)in the URL.
http://www.mydomain.com/advanced_se...t_y=7&osCsid=ebbf4c92066ae09bf8f3b5df2ce4c459

Have I done anything wrong? Please suggest as I want my Quick Search Code would work and I can get the correct search result.

Thanks.

 

You must set the name at the input.
<input name="keywords" type="text" class="search_fild_in" />