Tabletools are not working on local

Hello all,
can you please suggest why table tools are not working at my local PC, does it required any internet source to export data ? does it use any server ? if yes please let me know, i have download latest table tools and data-tables and seted swf path correctly but no success :(
only print button works

Here is my code :

$(document).ready( function () {
	$('#example').dataTable( {
		"sDom": 'T<"clear">lfrtip',
		"oTableTools": {
			"sSwfPath": "media/swf/copy_csv_xls_pdf.swf"
		}
	} );
} );

the swf path is correctly used!

Thanks in advance