How to add custom attributes to a column

Hi I'm trying to add a custom attribute to specific columns, I don't want to use DT_RowData to avoid repeating the same info for each row, (I only need it for the column header) I tried something like this (see myCustomAttribute:true)

resultDataTable = self.$resultTable.DataTable({ "bFilter": false, "bPaginate": false, "bAutoWidth": false, "dom": 'rt<"bottom"ifp><"clear">', data: data, columns: [ { data: 'WorkTitle', width: "20%", myCustomAttribute:true}, { data: 'AlternateTitle', width: "15%" },

but the new attribute doesn't appear when I iterate each column on the searchresultchanged event.

Is there a way to do something similar to this http://datatables.net/forums/discussion/10434/adding-custom-attributes-to-datatable

thanks