// Submit form
function submitform(o, btn, e) {
    // Get control id
    if ((e.which == 13) || (e.keyCode == 13)) {
        var conid = o.id.substring(0, o.id.lastIndexOf("_"));
        document.getElementById(conid + "_" + btn).click();
        return false;
    }
    else {
        return true;
    }
}