title: How to get aTargets' array length?
body: <p>I am using aoColumnDefs from the Datatable jQuery library. So I can use <code>"aTargets": [1, 2]</code> or such to define which column I want to change by this function. But my tables are dynamic, and I want to apply this function to all the columns except the first one. So how can I achieve this?<br/>
  Sorry didn't post the code I used, here it is:<br/></p>
  
  <pre><code>jQuery('.summary_tables').dataTable({
      "aoColumnDefs": [
       {
           "aTargets": [1,2,-1],
           "bUseRendered": false,
           "fnRender": function ( o ) {
               return o.oSettings.fnFormatNumber( parseInt( o.aData[ o.iDataColumn ] ) );
           }
       }
   ]
  });
  </code></pre>