$(document).ready(function() {
    
    $('#menu .button').mouseover(function() {
        $(this).children('.submenu').show();
    }).mouseout(function() {
        $(this).children('.submenu').hide();
    });
    
    $('#left #images').cycle({
        fx      :   'fade'
    });
    
});

var nImage = 1;
window.setInterval(function() {
    nImage++;
    $('#layer img').attr('src','images/layer' + nImage + '.png');
    if(nImage == 5) {
        nImage = 0;
    }
},500);