/**
 * DataTables internal date sorting replies on `Date.parse()` which is part of 
 * the Javascript language, but you may wish to sort on dates which is doesn't 
 * recognise. The following is a plug-in for sorting dates in the format 
 * `dd/mm/yy`.
 * 
 * An automatic type detection plug-in is available for this sorting plug-in.
 *
 *  @name Date (dd/mm/YY)
 *  @summary Sort dates in the format `dd/mm/YY`
 *  @author Andy McMaster
 *
 *  @example
 *    $('#example').dataTable( {
 *       columnDefs: [
 *         { type: 'date-uk', targets: 0 }
 *       ]
 *    } );
 */

 jQuery.extend( jQuery.fn.dataTableExt.oSort, {
	"date-uk-pre": function ( a ) {
		if (a == null || a == "") {
			return 0;
		}
		var ukDatea = a.split('/');
		return (ukDatea[2] + ukDatea[1] + ukDatea[0]) * 1;
	},

	"date-uk-asc": function ( a, b ) {
		return ((a < b) ? -1 : ((a > b) ? 1 : 0));
	},

	"date-uk-desc": function ( a, b ) {
		return ((a < b) ? 1 : ((a > b) ? -1 : 0));
	}
} );
