jQuery Grid Plugin - jqGrid

Problem search... please advance help me..\\

this my code :

datatype: "xml",
       colNames:['ID','Nama', 'Nama Lengkap', 'Alamat','hp'],
       colModel:[
           {name:'id_kar',index:'id_kar', width:15,align:"center",search:false,editable:true,editoptions:{readonly:true,size:5,align:"center"}},
           {name:'nm_depan',index:'nm_depan', width:80,editable:true,search:true,editoptions:{size:15}},
           {name:'nm_lengkap',index:'nm_lengkap', width:90,editable:true,search:true,editoptions:{size:40}},
           {name:'alamat',index:'alamat', width:60, align:"left",editable:true,editoptions:{size:60}},
           {name:'hp',index:'hp', width:60, align:"left",sorttype:"int",editable:true},       
       ],
       rowNum:10,
       rowList:[10,20,30],
       imgpath: 'themes/basic/images',
       pager: jQuery('#pagered'),
       sortname: 'id_kar',
    viewrecords: true,
    sortorder: "desc",
    width: 750, // new width
    height: 220,
    caption:"Administrator Account Setting",
    editurl:'editaccount.php'
}).navGrid('#pagered',{edit:true,add:false,del:false});

$("#bedata").click(function(){
    var gr = jQuery("#editgrid").getGridParam('selrow');
    if( gr != null ) jQuery("#editgrid").editGridRow(gr,{height:280,reloadAfterSubmit:true});
    else alert("Please Select Row");
    jQuery("#search").searchGrid( {sopt:['cn','bw','eq','ne','lt','gt','ew']} );
});