function setDivVisible(obj) {
    if (checkDiv(obj)) {
        obj.style.overflow = 'visible';
    }
}

function setDivHidden(obj) {
    if (checkDiv(obj)) {
        obj.style.overflow = 'hidden';
    }
}

function changeDivOverflow(obj) {
    if (checkDiv(obj)) {
        if (obj.style.overflow == "visible") {
            obj.style.overflow = "hidden";
        } else {
            obj.style.overflow = "visible";
        }
    }
}

function checkDiv(obj) {
    return (obj && obj.tagName && obj.tagName.toLowerCase() == "div");
}

var printed = false;
function startPrint(){
    printed = true;
    window.print();
}