function showmore(o)
{
    if( o.className  == "more" )
        o.className  = "";
    else
        o.className  = "more";
    
    o.style.background  = "";
}

function showover(o)
{
    if( o.className  == "more" )
        o.style.background  = "url(style/v2/btn_more_down.jpg)";
    else
        o.style.background  = "";
}

function showout(o)
{
    if( o.className  == "more" )
        o.style.background  = "url(style/v2/btn_more_up.jpg)";
    else
        o.style.background  = "";
}