rem: connect( this.document, "onkeyup", function ( event ) { self.key_released( event ); } ); 
add: connect( this.document, "onkeydown", function ( event ) { self.key_pressed( event ); } ); 
context:     connect( this.document, "onkeyup", function ( event ) { self.key_released( event ); } );
meta: 4711	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/4711/f05d3db661a366bcf7ea7a0c52281e5942127d67/Editor.js/buggy/static/js/Editor.js