function popup(url){
window.open(url, 'Ivona','width=820, height=630, menubar=no, resizable=no, left='+((screen.width-820)/2)+',top='+((screen.height-620)/2)+'\'');
}
Site = {
    
    initialize: function() {
        Site.animSidebar();
    },
    
    animSidebar: function() {
        var anchors = $$("#nav_main a");
        anchors.each(function(el) {
            var fx = new Fx.Morph(el, { duration: 200, wait: false });
            el.addEvent("mouseenter", function() {
                fx.start({
                    "padding-left":"14px",
                    "color": "#000"
                });
            });
            el.addEvent("mouseleave", function() {
                fx.start({
                    "padding":"6px 8px 4px 10px",
                    "color":"#faec8e"
                });
            });
            el.addEvent("mouseclick", function() {
                fx.start({
                    "padding-left":"14px",
                    "color": "#000"
                });
            });
        });
    }
    
}

window.addEvent("domready", Site.initialize);