function trigger(header)
{
var body = $(header.id+'Body');
if(body.hasClassName('bodyClosed'))
{
// open
new Effect.BlindDown(body, { duration: 1.5 });
body.addClassName('bodyOpen');
body.removeClassName('bodyClosed');
}
else
{
// close
new Effect.BlindUp(body, { duration: 0.5 });
body.addClassName('bodyClosed');
body.removeClassName('bodyOpen');
}
}