mxGraphView.prototype.validateBackgroundImage=function(){var a=this.graph.getBackgroundImage();if(null!=a){if(null==this.backgroundImage||this.backgroundImage.image!=a.src){null!=this.backgroundImage&&this.backgroundImage.destroy();var b=new mxRectangle(0,0,1,1);this.backgroundImage=new mxImageShape(b,a.src);this.backgroundImage.dialect=this.graph.dialect;this.backgroundImage.init(this.backgroundPane);this.backgroundImage.redraw();8!=document.documentMode||mxClient.IS_EM||mxEvent.addGestureListeners(this.backgroundImage.node,