form.myButton.disabled = true; form.myButton.value = "Please wait..."; return true; } function resetForm(form) // Reset button clicked { form.myButton.disabled = false; form.myButton.value = "Submit"; } </script> </head> <body> <?php $gallery->showImages(); echo '<br>'; ?> <div class="form"> <?php echo $gallery->msg; ?> <form action="<?php echo $_SERVER['PHP_SELF']; ?> " enctype="multipart/form-data" method="post" onsubmit="return checkForm(this);"> <input type="hidden" name="MAX_FILE_SIZE" value="7000000" /> <input type="file" name="userImage" required/><br/> <input type="submit" name="myButton"/> </form> </div>