mxGraphSelectionModel.prototype.cellAdded=function(a){null==a||this.isSelected(a)||this.cells.push(a)};mxGraphSelectionModel.prototype.cellRemoved=function(a){null!=a&&(a=mxUtils.indexOf(this.cells,a),0<=a&&this.cells.splice(a,1))};function mxSelectionChange(a,b,c){this.selectionModel=a;this.added=null!=b?b.slice():null;this.removed=null!=c?c.slice():null}