rem: if (!this.hasClass(className)) this.className = (this.className+' '+className).clean(); 
add: if (!this.hasClass(className)) this.className = (this.className + ' ' + className).clean(); 
context: 	addClass: function(className){		if (!this.hasClass(className)) this.className = (this.className+' '+className).clean();		return this;	},
meta: 8516	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/8516/3142ec74ba3b3466af4f730e72f666966c827e89/Element.js/clean/Native/Element.js