Zoom-img-in.js

function zoomImage(image, amt) { 
	if (image.initialHeight == null) {
		/* avoid accumulating integer-rounding error */ 
		image.initialHeight=image.height; 
		image.initialWidth=image.width; 
		image.scalingFactor=1; 
	} 
	image.scalingFactor *= amt; 
	image.width = image.scalingFactor*image.initialWidth; 
	image.height = image.scalingFactor*image.initialHeight; 
} 
var i,L=document.images.length; 
for (i=0;i<L;++i) zoomImage(document.images[i], 2); 
if (!L) alert("This page contains no images.");