jQuery Grid Plugin - jqGrid

When you use the pager's search button to open up the multi-criteria search/filter dialog, there is a "find" button in the lower, right-hand corner.  I can find the <span> element that renders this button, but I can not find a way to call the click event of this button.

This code here works on the pager to open the search/filter dialog:

$('#AccountPager .ui-icon-search').click();

But the following, similar code does not work to click the find button (which has the same class):

$('#fbox_AccountGrid .ui-icon-search').click();

I have tried this:

$('#fbox_AccountGrid').searchFilter().search();

But it does not appear to actually do anything, even though I know my filters are all there.  When I use Fiddler to watch the communications with the server, this line of code never initiates the expected refresh/update.

I found the actual code I want to call in jquery.searchFilter.js, starting with line 415.  That led me to try the following two options:

$('#fbox_AccountGrid').find('.ui-search').click();

$('#fbox_AccountGrid .ui-search').click();

But these didn't work either.  I feel like I am so close!  Anyone see what I am missing here?

TIA