jQuery Grid Plugin - jqGrid

function getWidthInPct(percent){
        screen_res = ($(document).width())*0.99;
        col = parseInt((percent*(screen_res/100)));
            return col;
    }

// Admin table
var admingrid = jQuery("#sadmin_table").jqGrid({
url:'includes/ajax/json.sadmin.php',
datatype: "json",
height:'auto',
width: getWidthInPct(99),
rownumbers: false,
 colNames:['Name','Value', 'Type', 'Options','Default','Description'],
    colModel:[
        {name:'name',index:'name', width:40, editrules:{edithidden:false, required:true}, editable:false},
        {name:'value',index:'value', width:30, editable:true},
        {name:'type',index:'type', width:20,editable:true, edittype:"select",editoptions:{value:"enum:enum;int:int;varchar:varchar"}
},
        {name:'options',index:'options', width:20, editable:false},
        {name:'default',index:'default', width:30, editable:false},
        {name:'description',index:'description', width:280,editable:true,edittype:"textarea", editoptions:{rows:"10",cols:"40"}}
    ],
    gridview: true,
    emptyrecords: "No Results Found",
    forceFit: true,
    rowNum:10,
    rowList:[10,20,30,40,50],
    sortname: 'name',
    viewrecords: true,
    sortorder: "asc",
    cellEdit: true,
    editurl: 'includes/ajax/json.sadmin.php?edit=1',
    mtype: "POST",
    pager: '#sadmin_pager',
    recordtext: "{0} – {1} of {2}",
    pgtext: "",
    });
// resize_sadmin_grid();
$(window).resize(resize_sadmin_grid);

// Set pager options
jQuery("#sadmin_table").jqGrid('navGrid','#sadmin_pager',{add:false,edit:false,del:false,search:false,refresh:false});
// Remove rollup icon
$('.ui-jqgrid-titlebar-close','#gview_sadmin_table').remove();