mxGraphSelectionModel.prototype.updatingSelectionResource="none"!=mxClient.language?"updatingSelection":"";mxGraphSelectionModel.prototype.graph=null;mxGraphSelectionModel.prototype.singleSelection=!1;mxGraphSelectionModel.prototype.isSingleSelection=function(){return this.singleSelection};mxGraphSelectionModel.prototype.setSingleSelection=function(a){this.singleSelection=a};mxGraphSelectionModel.prototype.isSelected=function(a){return null!=a?0<=mxUtils.indexOf(this.cells,a):!1};