function subgroups_my(obj)
{
    var nested = document.getElementById(obj.id+"_sub");
//alert(nested);
    if(nested.style.display=='none')
    {
        nested.style.display='block';
    }
    else
    {
        nested.style.display='none';
    }
}

function zl_my(obj)
{
        document.getElementById(obj.id).style.backgroundImage='url(/img/lm_bull_a.gif)';
}
function zl_out_my(obj)
{
        document.getElementById(obj.id).style.backgroundImage='url(/img/lm_bull.gif)';
}