You need to set the return action to false when you click order now. If its just for this one item change your on submit client script to the following:
window.location.href = '/sp?id=pd_bar';
return false;
if not you can place a check in there to list the item you are using like this:
function onSubmit() {
var itemSysId = g_form.getUniqueValue();
// Optional: check for specific item sys_id if reused
if (itemSysId == 'your cat item') {
window.location.href = '/sp?id=pd_bar';
return false; // Prevent default submission
}
return true; // Let others pass
}
