// text for footer images
        var default_txt = " ";
        var cmcd_txt = 'CMCD® Consistency Management and Cooperative Discipline'
        var iip_txt = 'Investor In People'
        var health_txt = 'Healthy Schools Bronze Award'
        var sport_txt = 'Sports England Sportsmark Award'
        var ssco_txt = 'Schools Sports CoOrdinator'

// the swap
        function rollText (txtTarget, txt) {
// text
        document.getElementById(txtTarget).innerHTML = txt;
        }