window.addEvent('domready', function() {

	var images = [];
	
	$$('img.roll').each(function(img) {
		var src = img.getProperty('src');
		var extension = src.substring(src.lastIndexOf('.'),src.length)
		var srch = src.replace(extension,'-on' + extension);
		images.include(srch);
		img.addEvent('mouseenter', function() { img.setProperty('src',srch); });
		img.addEvent('mouseleave', function() { img.setProperty('src',src); });
	});
	
	var loader = new Asset.images(images);

});


function images4() {	
	
	function randomXToY(minVal,maxVal,floatVal) {
	  var randVal = minVal+(Math.random()*(maxVal-minVal));
	  return typeof floatVal=='undefined'?Math.round(randVal):randVal.toFixed(floatVal);
	}
	
	var num1 = randomXToY(1,4);
	var num2 = randomXToY(5,8);
	var num3 = randomXToY(9,12);
	var num4 = randomXToY(13,16);
	
	document.write('<table width="333" border="0" cellpadding="0" cellspacing="0"><tr>');
	document.write('<td><img src="/images/squares/'+num1+'.jpg" width="79" height="79" /></td>');
	document.write('<td><img src="/images/squares/'+num2+'.jpg" width="79" height="79" /></td>');
	document.write('<td><img src="/images/squares/'+num3+'.jpg" width="79" height="79" /></td>');
	document.write('<td><img src="/images/squares/'+num4+'.jpg" width="79" height="79" /></td>');
	document.write('</tr></table>');
}