jQuery Grid Plugin - jqGrid

I'm trying to put two jqGrids on the same page, both with inline search. However, when you click the magnifying glass on either of the two grids, it's always the grid later in the document which will get it's searchbar opened. I've been poking around in the source a little, but couldn't figure out whether it's an issue within jqGrids or the way I use it (with the jqgrid plugin for Rails). Has anyone seen this problem before?

Thanks!