rem: return false; 
add: return false; 
context: qx.Proto._onkeyevent = function(vDomEvent){  if (this.getDisposed() || typeof qx.event.type.KeyEvent != qx.constant.Type.FUNCTION) {    return;  }  if(!vDomEvent) {    vDomEvent = window.event;  }  var vType = vDomEvent.type;  var vKeyCode = vDomEvent.keyCode;  var vCharCode = vDomEvent.charCode;	  if (qx.sys.Client.getInstance().isWebkit()) // Safari   {    // normalize keyCodes    vKeyCode = qx.event.handler.EventHandler._safariKeyCodeMapping[vKeyCode] || vKeyCode;		    // prevent Safari from sending key signals twice    // http://trac.mochikit.com/ticket/182    if (qx.event.handler.EventHandler._safariKeyCodeMapping[this._lastCharCodeForEvent[vType]]) {      this._lastCharCodeForEvent[vType] = null;      return false;             }  }  if (qx.sys.Client.getInstance().isMshtml()) // IE   {    // MSHTML sometimes does not include a keypress event type    if (this._lastKeyEventType === qx.constant.Event.KEYDOWN && vType === qx.constant.Event.KEYUP) {      this._onkeyevent_post(vDomEvent, qx.constant.Event.KEYPRESS, vKeyCode);    }  }  this._lastCharCodeForEvent[vType] = vCharCode;  this._lastKeyEventType = vType;  this._onkeyevent_post(vDomEvent, vType, vKeyCode);}
meta: 1005	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/1005/b2188e420950847ab203d55548ab307adf10983e/EventHandler.js/clean/qooxdoo/frontend/framework/source/class/qx/event/handler/EventHandler.js