function showhide(id)
{
    if(!document.getElementById) return;
    var obj = document.getElementById(id);
    if(!obj || !obj.style) return;
    obj.style.display = obj.style.display != 'none' ? 'none' : 'block';


}

function close_showhide(id)
{
    if(!document.getElementById) return;
    var obj = document.getElementById(id);
    if(!obj || !obj.style) return;
    obj.style.display  = 'none' ;
    
    
}