// ADMIN FUNCTIONS
// not used on front end
function confirmRemove(eid)
{
    if (confirm('Are you sure you want to remove this item? '))
    {
        document.location = 'delete_promotion.php?record_id=' + eid;
    }

    return false;
}

function loadEdit(eid)
{
    title = document.getElementById('title' + eid).innerHTML;
    link = document.getElementById('link' + eid).innerHTML;
    teaser = document.getElementById('teaser' + eid).innerHTML;

    document.getElementById('title').value = title;
    document.getElementById('link').value = link;
    document.getElementById('teaser').value = teaser;
    document.getElementById('record').value = eid;
}

lastKey = 0;
function imposeMaxLength(Object, MaxLen)
{
    if (lastKey != 8)
    {
        return (Object.value.length < MaxLen);
    }
}

// FRONT END FUNCTIONS

// This is an event handler that tests to see what key was pressed
function KeyCheck(e)
{
    var KeyID = (window.event) ? event.keyCode : e.keyCode;

    lastKey = KeyID;
}

// This registers the KeyCheck handler (above) with the onkeyup event, so it will execute the function each time a key is pressed and released
document.onkeyup = KeyCheck;
// This just sets a boolean (true/false) flag to tell the widget whether or not to rotate
rotate = 1;
// This loads up a particular item (promo) into the widget based on a JavaScript array of items.
// The JavaScript array is built dynamically in the promos.php code by querying the database for active promos and looping the results
function loadPromo(promoIndex, auto)
{
    if (rotate || !auto)
    {
        pageNumber = promoIndex + 1;
        document.getElementById('page').innerHTML = pageNumber;
        document.getElementById('title').innerHTML = promos[promoIndex][0];
        document.getElementById('teaser').innerHTML = promos[promoIndex][1];
        document.getElementById('link').href = promos[promoIndex][2];
        document.getElementById('promoimg').src = "" + promos[promoIndex][3];
    }

    if (auto)
    {
        if (pageNumber < 5)
        {
            setTimeout('loadPromo(' + pageNumber + ', true)', 7000);
        }
        else
        {
            setTimeout('loadPromo(0, false)', 7000);
        }
    }
}

// This is for controlling the navigation through the items, so when the user clicks one of the direction arrows, the proper item will load
function getPromoIndex(direction)
{
    promoIndex = parseInt(document.getElementById('page').innerHTML) - 1;

    switch (direction)
    {
        case 'down':
            promoIndex -= 1;
            break;

        case 'up':
            promoIndex += 1;
            break;

        case 'hold':
            break;
    }

    if (promoIndex < 0)
    {
        promoIndex = 4;
    }
    else if (promoIndex > 4)
    {
        promoIndex = 0;
    }

    return promoIndex;
}

// This just tells the widget to stop rotating through items
function promoStop()
{
    rotate = 0;
}