rem: return element.offsetHeight; 
add: return element.offsetHeight; 
context:   getHeight: function(element) {    element = $(element);    return element.offsetHeight;   },
meta: 60	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/60/3f913f897829fb026ef98df2d57f8da94ee5339d/prototype.js/buggy/public/javascripts/prototype.js