function openPopup(url, name, width, height) {
    w = window.open(url, name, 'resizable=yes,width=' + width + ',height=' + height + ',top=0,scrollbars=1');
    w.focus();
}

function resizeScreen() {
    var frm = document.forms[0];
    var width = frm.offsetWidth + 50;
    var height = frm.offsetHeight + 50;
    window.resizeTo(width, height);
}

function toggleDisplay(obj, link) {
    var el = document.getElementById(obj);
    el.style.display = (el.style.display != 'none' ? 'none' : '');
    link.innerHTML = (el.style.display != 'none' ? 'Hide' : 'Show');
}