function openwindow_image(url)
{
          var features = 'resizable=no,location=no,menubar=no,status=no,toolbar=no,height=500,width=660,left=80,top=80,scrollbars=yes';
          void(window.open(url, "pop", features));
}


function showDiv( id ) { 
    document.all.dns1.style.visibility = 'hidden'; 
    document.all.dns1.value = ''; 
    document.all.dns2.style.visibility = 'hidden'; 
    document.all.dns2.value = ''; 
    document.all[ id ].style.visibility = 'visible'; 
    document.all[ id ].focus(); 
}