rem: var updatesView = document.getElementById("updatesView"); updatesView.setAttribute("showcompletedupdates", checkbox.checked); 
add: this._updatesView.setAttribute("showcompletedupdates", checkbox.checked); 
context:   showCompletedUpdatesChanged: function(checkbox) {    var updatesView = document.getElementById("updatesView");    updatesView.setAttribute("showcompletedupdates", checkbox.checked);  },
meta: 7628	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/7628/4a8f4683b85e46c1f6c909b4f7a1152e503009d6/updates.js/clean/content/updates.js