function submitFrm(btn) {
    btn.value = 'Please wait..';
    btn.disabled = true;

    frm = document.getElementById('data');
    var el = document.createElement('input');
    el.type = 'hidden';
    el.name = btn.name;
    el.value = 1;
    frm.appendChild(el);
    frm.submit();

    return false;
}

function sbmt(formName, name, val) {
    frm = document.forms[formName];
    var el = document.createElement('input');
    el.type = 'hidden';
    el.name = name;
    el.value = val;
    frm.appendChild(el);
    frm.submit();

    return false;
}

function checkAllCheckboxes(form, namePrefix, checkAll) {
    if (typeof checkAll == "undefined") checkAll = true;

    for (i = 0; i < form.elements.length; i++) {
        e = form.elements[i];

        if(e.name.slice(0, namePrefix.length) == namePrefix) {
            e.checked = checkAll;
        }
    }
}