jQuery Grid Plugin - jqGrid

hello,

I use the following

 info_dialog(jQuery.jgrid.nav.alertcap,"mytext", jQuery.jgrid.edit.bClose,{left:150,top:170});

 setTimeout("removewindow();",2000);

the removewindow is to "auto close" it after 2 seconds:

    function removewindow()
    {
        hideModal("#info_dialog",{jqm:true});
    }

the dialog disappears, so that is good, but the memory stays allocated (approx 2MB). so if I do this 5 times (whithout closing the window) memory goes up to 10MB (I use Jquery 1.3.2 with jqgrid 3.6.4)

any help is appriciated

Dirk