function setImage(obj) {
	setWidth(120);
	//obj.style.width = '250px';
	setWidthId($(obj),250);
}
function resetImage(obj) {
	setWidth(150);
}
function setWidth(width) {
	setWidthId($('img1'),width);
	setWidthId($('img2'),width);
	setWidthId($('img3'),width);
	setWidthId($('img4'),width);
}
function setWidthId(imgobj,width) {
	imgobj.set('tween', {
			duration: 1000,
			transition: Fx.Transitions.Quad.easeOut // This could have been also 'Quad:out'
		}).tween('height', width+'px');
	imgobj.set('tween', {
			duration: 1000,
			transition: Fx.Transitions.Quad.easeOut // This could have been also 'Quad:out'
		}).tween('width', width+'px');
}