 this element visible onscreen?
var visible = $(this).visible( detectPartial );

// Set the visible status into the span.
$(this).find('span').text( visible ? 'Onscreen' : 'Offscreen' ).toggleClass('visible',visible);
			</code>
		
			<dl>
				<dt>One</dt>
				<dd>Lorem ipsum dolor sit amet, consectetuer adipiscing elit.</dd>
				<dd>Lorem ipsum dolor sit amet, consectetuer adipiscing elit.</dd>
				<dd>Lorem ipsum dolor sit amet, consectetuer adipiscing elit.</dd>
				<dd>Lorem ipsum dolor sit amet, consec