How to use jquery on grid applicacion, and jquery "insertafter"

Guys:

i use jquery on forms to modify the forms so they do crazy things… this time i would like to use jquery on a grid applicacion, i would like to use jquery to insert a “
” after the quick search button on top of the grid aplicacion…

i would put this code on the “onApplicationInit” event:

?>
	<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.11.2/jquery.min.js">			</script>

	<script>
  

$("<br>").insertAfter( "#quicksearchph_top" );	


</script>

<?

as you can see, the id of the quicksearch button this time is “quicksearchph_top”

this little trick works on form, but this time is not working on grid application… any idea???

fer from mexico