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		function swap(newImage) 			{			// step 1 : Fade out the picture (uses Script.aculo.us)			new Effect.Fade(document.zoom) ;						function b()				{				// step 2 : Change the content (while hidden)				var fileName = newImage.toString() ;				document.zoom.src = fileName ;				// step 3 : Fade in the new picture (uses Script.aculo.us)				new Effect.Appear(document.zoom, {delay:0}) ;				};			setTimeout(b, 1000 );			}