function showatt (att,title,showlink)
{
var db = document.forms[0].db.value;
var url = 'http://' + location.hostname + '/'+db+'/ShowAtt?readform&image=';
if ( att !="" )
{
url=url.concat(att);
if ( title!="" )
{
url=url.concat('&title=');
url=url.concat(title)
}

if ( showlink==1 )
{
url=url.concat('&showlink');
}

var settings='toolbar=no,location=no,directories=no,'+
'status=yes,menubar=no,scrollbars=yes,'+
'resizable=yes,width=640,height=480,top=0,left=100';

window.open(url,'showimage',settings);
}
else
{return false}
}