jQuery Grid Plugin - jqGrid

I am cloning a div that contains a jqGrid. The HTML looks like this:

<div class="main">

 <div class="resultBlock">
          <table class="results"></table>
   </div>

</div>

The javascript creates the jqGrid as follows:

   $("table.results").jqGrid({
        datatype: "local",
        height: 250,
        colNames:['Misc'],
        colModel:[ { name:"id", width:100}],
        multiselect: false          
            });

Then, the clone is created as follows:

$("div.main").clone(true)

In the original div, I can get to the jqGrid as follows:

$main.find("div.results").jqGrid() // where main is a reference to the original div with class of main

\In the cloned div, I try the same:

$main.find("div.results").jqGrid() // where main is a reference to the cloned div with class of main

but get an jquery error as follows: