function hideflash()
{
        /* hide all flash in the page */
        flash = document.getElementsByTagName('embed')
        for (var i = 0; i < flash.length; i++) 
        { 
                flash[i].style.visibility = 'hidden';
        }
}

function showflash()
{
        /* show all flash */
        flash = document.getElementsByTagName('embed')
        for (var i = 0; i < flash.length; i++) 
        { 
                flash[i].style.visibility = 'visible';
        }
}