selectMenu = function(menuItem)
{
    var oldImgUrl = menuItem.childNodes[0].src;
    
    menuItem.childNodes[0].src = oldImgUrl.replace('.png','_eff.png');
}

deselectMenu = function(menuItem)
{
    var oldImgUrl = menuItem.childNodes[0].src;
    
    menuItem.childNodes[0].src = oldImgUrl.replace('_eff.png','.png');
}

preloadImages = function() 
{
    var arr = new Array(imagesToPreload.length);
    
    for(var i=0; i < imagesToPreload.length; i++) 
    { 
        arr[i] = new Image(); 
        arr[i].src = imagesToPreload[i]; 
    }
}

ShowSelezionaAgenzia = function()
{
    document.getElementById('div_background_master').style.display = 'inline';
    document.getElementById('flyout_master').style.display = 'inline';
}

CloseSelezionaAgenzia = function()
{
    document.getElementById('div_background_master').style.display = 'none';
    document.getElementById('flyout_master').style.display = 'none';
    
    return false;
}