master & detail grid using jqgrid ?

[eluser]Unknown[/eluser]
dear,

Based on the ION's problem, how to make master detail with two or more parameter..

i've tried some ways, example like this

jQuery("#list_invoice_detail").jqGrid('setGridParam',{url:'index.php/invoice_controller/grid_detail/'+ ids +kasus_id,page:1});

but...did not display anything...

thanks