before send ajax loading
$.ajax({
url : dle_root + 'engine/ajax/fast.php',
data: { text: response, action: action },
beforeSend: function(){
$("#loading").show();
},
complete: function(){
$("#loading").hide();
},
success: function (data) {
if (data == 'ok') {
DLEalert(dle_p_send_ok, dle_info);
}
else { DLEalert(data, dle_info); }
});
});