ho trovato il codice

codice:
createMooFlowElement: function(counter, index){
		var object = this.getCurrent(index);
		object['width'] = this.loadedImages[index].width;
		object['height'] = this.loadedImages[index].height;

		var div = new Element('div').setStyles({
			'position':'absolute',
			'display':'none',
			'height': this.MooFlow.getSize().y
		});
		var con = new Element('div').inject(div);
		var img = new Element('img', {
			'src': object.src,
			'styles':{
				'vertical-align':'bottom',
				'width':'100%',
				'height':'50%'
			}
ma se modifico i valori
'width':'100%',
'height':'50%'
si scombina tutto