$el.find('a, img, .my-class, #WEmyID').each(function(){
			var $tag = $(this);
			var atts = {rel: null, href: null, src: null, title: null, alt: null, id: null}; // les attributs susceptible a contenir des valeurs de proprietes
			for (var attr in atts) {
				var val = $tag.attr(attr);
				if (val && val.trim() !== val) {
					$tag.attr(attr, val.trim());
				}
			}
		});