function onMenuEnter(item) {
    item.parentNode.className = "highlightedMenuItem";
    document.body.style.cursor = "pointer";
}

function onMenuLeave(item) {
    item.parentNode.className = "menuItem";
    document.body.style.cursor = "default";
}

function onSubMenuEnter(item) {
    item.className = "highlightedSubMenuItem";
    document.body.style.cursor = "pointer";
}

function onSubMenuLeave(item) {
    item.className = "subMenuItem";
    document.body.style.cursor = "default";
}