Funkce se zaregistruje do události onAction.
function onTest(ev)
{
if (ev.Action == "main")
{
Pm.Debug("Click UP");
//. . .
}
}
var oForm = pMe.Form;
var oBtn = oForm.CreateItem("button", "id_butt1");
oBtn.Value = "Button";
oBtn.AddEvent("onAction", onTest);