mxGraph.prototype.flipEdge=function(a){if(null!=a&&null!=this.alternateEdgeStyle){this.model.beginUpdate();try{var b=this.model.getStyle(a);null==b||0==b.length?this.model.setStyle(a,this.alternateEdgeStyle):this.model.setStyle(a,null);this.resetEdge(a);this.fireEvent(new mxEventObject(mxEvent.FLIP_EDGE,"edge",a))}finally{this.model.endUpdate()}}return a};mxGraph.prototype.addImageBundle=function(a){this.imageBundles.push(a)};