var imgState = -1;
function highlight(img)
{
    var src = img.src + "";
    if (src.indexOf("/") != -1 && (src.indexOf("l_") != -1 || src.indexOf("lo_") != -1))
    {
        var path = src.substring(0, src.lastIndexOf("/") + 1);
        var file = src.substring(src.lastIndexOf("/") + 1);
        
        if (imgState == -1 && file.indexOf("l_") == 0)
        {
            file = "lo_" + file.substring(2);
            imgState = 1;
        }
        else if (imgState == 1 && file.indexOf("lo_") == 0)
        {
            file = "l_" + file.substring(3);
            imgState = -1;
        }
        img.src = path + file;
    }
}
function isMSIE()
{
    if (navigator.appVersion.indexOf("MSIE")!=-1)
    {
        var version=navigator.appVersion;
        version=version.substring(version.indexOf("MSIE ")+5);
        version=version.substring(0,version.indexOf("."));
        return (version-0);
    }
    return -1;
}