add: function(classNameToAdd) { if (this.include(classNameToAdd)) return; this.set($A(this).concat(classNameToAdd).join(' ')); }, 
add: function( elem, c ){ jQuery.each( c.split(/\s+/), function(i, cur){ if ( !jQuery.className.has( elem.className, cur ) ) elem.className += ( elem.className ? " " : "" ) + cur; }); }, 
  add: function(classNameToAdd) {    if (this.include(classNameToAdd)) return;    this.set($A(this).concat(classNameToAdd).join(' '));  },
5582	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/5582/811fb8628683e9936c39b6f33ec7a27f60918768/dom.js/buggy/src/dom.js