jQuery Grid Plugin - jqGrid

Hello,

I'm  trying to figure out how to have my single search form submit when the enter button is pressed.  I've found several posts regarding this, but the code doesn't work for me.  I've tweaked the code I found, as seen below.  But this code doesn't work properly.  It seems that when I press the enter key, the form is submitted as if there was nothing entered in the value field.  If I manually press the search button with the mouse pointer, it submits fine, but the jquery .click() method doesn't submit it properly, for whatever reason.  I was hoping one of you might be able to give me some pointers here.  Thanks!

Edit:  The weird thing is, if I put an alert right before the .click() event, the alert pops up and the search works properly.  But without the alert, just a '0' is submitted...