rem: item.setAttribute("hidden", "true"); 
add: item.hidden = true; 
context: function HideItem(id){  var item = document.getElementById(id);  if (item)    item.setAttribute("hidden", "true");}
meta: 10234	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/10234/b1c736039e4613f08fbb49d15711f0dbf686da2f/editor.js/clean/editor/ui/composer/content/editor.js