var CALENDAR_WIDTH=742;
var NUM_BACKGROUNDS=6;

function switch_calendar(direction)
{
    calendarContainer = document.getElementById('calendar_container_container');

    scrollLeft = calendarContainer.scrollLeft;

    
    if(direction == 'right')
        {
             calendarContainer.scrollLeft = scrollLeft + CALENDAR_WIDTH;

             
        }
    else
        {
            calendarContainer.scrollLeft = scrollLeft - CALENDAR_WIDTH;
            
        }
}

function random_background()
{
    i = Math.floor(Math.random() * NUM_BACKGROUNDS) + 1;
    var backgroundName = 'top-banner' + i +'.jpg';

    document.getElementById('page-title').style.backgroundImage = 'url(images/' + backgroundName + ')';

}