function chgVersion()
{
    if(document.getElementById("ver").style.display=="block")
    {
        document.getElementById("ver").style.display="none";
        document.getElementById("vimg").src="/images/seldown.gif";
    }
    else        
    {
        document.getElementById("ver").style.display="block";
        document.getElementById("vimg").src="/images/selup.gif";
    }
}