Plugins/type-detection/date-uk.js

/**
 * Automatically detect British (`dd/mm/yyyy`) date types. Goes with the UK 
 * date sorting plug-in.
 *
 *  @name Date (`dd/mm/yyyy`)
 *  @summary Detect data which is in the date format `dd/mm/yyyy`
 *  @author Andy McMaster
 */

jQuery.fn.dataTableExt.aTypes.unshift(
	function ( sData )
	{
		if (sData !== null && sData.match(/^(0[1-9]|[12][0-9]|3[01])\/(0[1-9]|1[012])\/(19|20|21)\d\d$/))
		{
			return 'date-uk';
		}
		return null;
	}
);