function resizeMenuItemBGs() {
    var menu = document.getElementById('mainMenu');
    var standardMenuItemHeight = 32;
    var itemList = getElementsByClassName('topMenuLevel', menu);
    /*Find max height*/
    for (var i = 0; i < itemList.length; i++) {
        if (itemList[i].offsetHeight > standardMenuItemHeight) {
            itemList[i].style.backgroundImage = "url(/Images/menu/2LineMenuItemBG.png)";
            itemList[i].onmouseover = function () { this.style.backgroundImage = "url(/Images/menu/2LineMenuItemHighlightBG.png)"; }
            itemList[i].onmouseout = function () { this.style.backgroundImage = "url(/Images/menu/2LineMenuItemBG.png)"; }
        }
    }
}

function getElementsByClassName(classname, node) {
    if (!node) node = document.getElementsByTagName("body")[0];
    var a = [];
    var re = new RegExp('\\b' + classname + '\\b');
    var els = node.getElementsByTagName("*");
    for (var i = 0, j = els.length; i < j; i++)
        if (re.test(els[i].className)) a.push(els[i]);
    return a;
}