1/* Copyright (c): 2002-2005 (Germany): United Internet, 1&1, GMX, Schlund+Partner, Alturo */ 2function QxImagePreloaderManager(){if(QxImagePreloaderManager._instance){return QxImagePreloaderManager._instance;};QxManager.call(this);QxImagePreloaderManager._instance=this;};QxImagePreloaderManager.extend(QxManager,"QxImagePreloaderManager");proto.add=function(oObject){this._objects[oObject.getUri()]=oObject;};proto.remove=function(oObject){delete this._objects[oObject.getUri()];};proto.has=function(oUri){return this._objects[String(oUri)]!=null;};proto.get=function(oUri){return this._objects[String(oUri)];};