var oPopup = window.createPopup();

function richToolTip(control, myText)
{
    var lefter = 80;
    var topper = -10;
    DIV_oText.innerHTML = myText;
    oPopup.document.body.innerHTML = oToolTip.innerHTML; 
    oPopup.show(lefter, topper, 200, 250, control);
}

function richToolHide(control, myText)
{
    var lefter = 70;
    var topper = 10;
    DIV_oText.innerHTML = myText;
    oPopup.document.body.innerHTML = oToolTip.innerHTML; 
}