/* Center the flash header */
function centerFlashBanner()
{
    var bannerWidth = 900;//1853;
    var viewPortWidth = document.documentElement.clientWidth;
    if (bannerWidth > viewPortWidth)
    {
        // Banner is too large, set negative left position
        var left = -((bannerWidth - viewPortWidth) / 2);
        document.getElementById("header").style.left = left + 'px';
    }
}