ok, i turned on my brain and i found the error : $("nomGSP").click(function () { incorrect $("#nomGSP").click(function () { correct
but it would not be fun if it works ! i've got the correct data produced by the changing (i can see it in the ajax request), but the FLASH chart is not reloading so all i can see is the original flash chart (not updated) any ideas ? the flash chart is contained into an div and the options are provided by this : swfobject.embedSWF( "../open-flash-chart.swf", "graphique3", "900", "800", "9.0.0", "/expressInstall.swf", {"data-file":"../graphiques/notes.php", "loading":"loooooooading..."} ); Thanks