var MarqueeWidth, TextWidth, divMarquee;
var tSpeed = 3;    // scroll speed (1 = slow, 5 = fast)
var cps = tSpeed;

function StartMarquee() {
    if (document.getElementById) {
        divMarquee = document.getElementById("divMarquee");
        MarqueeWidth = divMarquee.offsetWidth;
        divMarquee.style.left = (parseInt(MarqueeWidth) + 10) + "px";
        TextWidth = document.getElementById(spnTextClientID).offsetWidth;
        setInterval("ScrollMarquee()", 50);
    }
}

function ScrollMarquee() {
    divMarquee.style.left = (parseInt(divMarquee.style.left) > (-10 - TextWidth)) ? parseInt(divMarquee.style.left) - cps + "px" : parseInt(MarqueeWidth) + 10 + "px";
}