function plover()
{
    var sfEls = document.getElementById("fbb").getElementsByTagName("input");
    if (sfEls.length)
    {
        var fnMouseOver = function() { this.className += " plover"; };

        var re = / plover\b/;
        var fnMouseOut = function() { this.className = this.className.replace(re, ""); };

        for (i = 0; (i < sfEls.length); ++i)
        {
            sfEls[i].onmouseover = fnMouseOver;
            sfEls[i].onmouseout = fnMouseOut;
        }
    }
}

if (window.attachEvent)
{
    window.attachEvent("onload", plover);
}