function send() { var i1 = $('#i1').val(); var i0 = $('#i0').val(); var i7 = $('#i7').val(); $.ajax({ type: "POST", url: "Step.php", data: "i1="+i1+"&i0="+i0+"&i7="+i7, success: function(html) { $("#spi").empty(); $("#spi").append(html); } }); }