var imgDir = 'http://195.82.99.114/~dsartc00/images/menu';

function init()
{
    setMenuUp();
}

function over(menuItem) {
    menuItem.style.backgroundImage = 'url(' + imgDir + '/blank-purple.gif)';
}

function out(menuItem) {
    if (menuItem.id != 'selected') {
        menuItem.style.backgroundImage = 'url(' + imgDir + '/blank-green.gif)';
    }
}

function setMenuUp()
{
    var menu = document.getElementById('menu');
    var menuItems = menu.getElementsByTagName('li');
    var count = menuItems.length;
    for (var i = 0; i < count; i++)
    {
        var menuItem = menuItems[i];
        menuItem.onmouseover = new Function("over(this);");
        menuItem.onmouseout = new Function("out(this);");
    }
}

window.onload = init;