<!--
function changeColour(elementId) {
    var interval = 1000;
    var colour1 = "#ff0000"
    var colour2 = "#000000";
    if (document.getElementById) {
        var element = document.getElementById(elementId);
        element.style.color = (element.style.color == colour1) ? colour2 : colour1;
        setTimeout("changeColour('" + elementId + "')", interval);
    }
}
//-->