mxArrowConnector.prototype.isMarkerStart=function(){return mxUtils.getValue(this.style,mxConstants.STYLE_STARTARROW,mxConstants.NONE)!=mxConstants.NONE};mxArrowConnector.prototype.isMarkerEnd=function(){return mxUtils.getValue(this.style,mxConstants.STYLE_ENDARROW,mxConstants.NONE)!=mxConstants.NONE};