jQuery Grid Plugin - jqGrid

Hi

I'm struggling with a couple of things related to the "Simple" Search facility;

1) the dialog box that appears is always in the top left hand corner of the grid.  I'd like to center it on the page so I've tried changing the css file to;

.ui-searchFilter table {position:relative; margin: 7px auto;}

as mentioned on the "single searching" page in the documentation and have also tried seeting specific "top" & "left" parameters in the search options as mentioned on the Live Data Manipulation->Searching Data demo but neither seems to move it from it's default position.

2) I've a date field I'd like to be able to search on so ideally I'd like to be able to present the user with a datepicker when the user chooses this particular field from the drop-down.  I've found a couple of references suggesting that this might be possible (some code in the dataInit part of the "searchoptions" in the colModel) but I can't find any examples of how to do this - is it possible to do this with the simple search facility or am I better creating my own modal dialog box?

Chris