rem: (!options.only || (Element.hasClassName(e, options.only)))) 
add: (!only || (Element.classNames(e).detect(function(v) { return only.include(v) })))) 
context:     $A(element.childNodes).each( function(e) {      if(e.tagName && e.tagName.toUpperCase()==options.tag.toUpperCase() &&        (!options.only || (Element.hasClassName(e, options.only))))          elements.push(e);      if(options.tree) {        var grandchildren = this.findElements(e, options);        if(grandchildren) elements.push(grandchildren);      }    });
meta: 5138	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/5138/130001c377e7abf17ea2f4f856cab30882a60f92/dragdrop.js/clean/railties/html/javascripts/dragdrop.js