function ucLevel1Links_LinkArrowImage(imgId, activate)
{
    var linkarrowimage = common_ElementFromId(imgId);
    if (imgId.indexOf('linkarrow_Main_Left') > -1)
    {
        linkarrowimage.src = activate ? "Images/linkarrow-left-anim.gif" : "Images/linkarrow-left.gif";
    }
    else if (imgId.indexOf('linkarrow_Main_Right') > -1)
    {
        linkarrowimage.src = activate ? "Images/linkarrow-right-anim.gif" : "Images/linkarrow-right.gif";
    }
    return (true);
}