value of (new Element('div').set('opacity', 0.4).get('opacity')).should_be(0.4); 
value_of(new Element('div').set('opacity', 0.4).get('opacity')).should_be(0.4); 
	'should return the opacity of an Element': function() {		value of (new Element('div').set('opacity', 0.4).get('opacity')).should_be(0.4);	}
7087	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/7087/b1331e3df2c328e861441f46ff778840ed87a01b/Element.Style.js/clean/Specs/Element/Element.Style.js