$(document).ready(function () {
    setPicture('titleImage');
    
    $('table.agenda tbody tr').hover(function () { $(this).addClass("hover"); }, function () { $(this).removeClass("hover"); });
});

var pictures = 11;

function getPicture() { 
    var index = Math.floor(Math.random() * pictures); 
    return "image/header/foto" + index + ".jpg"; 
}

function setPicture(id) { 
    var el = document.getElementById(id); 
    el.style.backgroundImage = "url('" + getPicture() + "')";
}

function setActiveMenu(id) {
    var menu = document.getElementById(id);
    if (menu != null) {
        addClassName(menu, 'menu_Active');
    }
}