function mxTerminalChange(a,b,c,d){this.model=a;this.cell=b;this.previous=this.terminal=c;this.source=d}mxTerminalChange.prototype.execute=function(){null!=this.cell&&(this.terminal=this.previous,this.previous=this.model.terminalForCellChanged(this.cell,this.previous,this.source))};function mxValueChange(a,b,c){this.model=a;this.cell=b;this.previous=this.value=c}