jQuery Grid Plugin - jqGrid

I really appreciate and enjoy jqGrid and use it in some projects.But my customers are very strict about pager,they want to a pager style like  "pre-ten  11,12,13,14,15,16,17,18,19,20  next-ten".

I find no method to extend jqGrid to support the pager style. Maybe I could use loadComplete event for customization ,just like 

$(document).ready(function() {

        $("#myTable").jqGrid({

              datatype: 'json',

              pager:"#pager",

              …………….,

loadComplete:function(data) { var nav=$("#pager"+"_"+"left","#pager");

$("#dvCustomerPager",nav).remove();

var dvCustomerPager=$("<div id='dvCustomerPager' ></div>");

var curPage=parseInt($("#myTable").getGridParam("page"));

var itr;

for(var c=-4;c<6;c++)

{

        itr=(curPage+c);

        dvCustomerPager.append($("<a href='#' &nbsp;style='margin:0px 3px 0px 3px;'  onclick='gotoPage("+itr+")'>"+itr+"</a>"));

}

 nav.append(dvCustomerPager);

 }

});

});

……………….

function gotoPage(thePage)

{

      $("#myTable").setGridParam({page:thePage}).trigger("reloadGrid");

}

But I must copy these codes for every jqGrid instance .I want to find some methods to  extend the $.fn or set $.jgrid.defaults.loadComplete so that it  does effects for every jqGrid instance. So could you give a extention point to support customiztion pager. Or you may add another parameter  that pass jqGrid instance  itself in loadComplete event ,so that I can get the jqGrid instance and get its parameters. Or you may provide a afterPaging event and pass jqGrid instance to it , and then I could do something for customization pager.

In addition , I think a getNavBar() method that returns jgGrid instance's navigation bar(pager element)  is neccessary.Because you may change navbar's id in the later version and my extension may lose efficacy .But if you provide getNavBar() , my extension will always work independent of any new version.

Thank you!