rem: tw_addEventListener(document, "mouseup", this._mouseUp); 
add: tw_addEventListener(document, "mouseup", this._mouseUp); var frames = document.getElementsByTagName("IFRAME");  for (var i = 0, cnt = frames.length; i < cnt; i++) { frames.item(i).style.display = "none"; } 
context:     _mouseDown: function(event) {        if (tw_getEventButton(event) != 1);        this._dragBox = tw_getEventTarget(event);        this._startX = this._lastX = event.clientX;        this._startY = this._lastY = event.clientY;        this._callListener(0, 0, 0);        tw_addEventListener(document, "mousemove", this._mouseMove);            tw_addEventListener(document, "mouseup", this._mouseUp);    },    
meta: 5515	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/5515/f92e9b34465915b5a9427afe1d7d625eccda8376/DragHandler.js/buggy/src/thinwire/render/web/resources/DragHandler.js