rem: this.margin = 'left'; 
add: this.margin = 'margin-left'; 
context: 	horizontal: function(){		this.margin = 'left';		this.layout = 'width';		this.offset = this.element.offsetWidth;		return [this.element.getStyle('margin-left').toInt(), this.wrapper.getStyle('width').toInt()];	},
meta: 5237	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/5237/1a2bb0c7e5b80527fc0bda44066ebdbccaf88d8c/Fx.Slide.js/buggy/Effects/Fx.Slide.js