if(!dojo._hasResource["dojox.charting.Element"]){ //_hasResource checks added by build. Do not use _hasResource directly in your code.dojo._hasResource["dojox.charting.Element"] = true;dojo.provide("dojox.charting.Element");dojo.declare("dojox.charting.Element", null, {	constructor: function(chart){		this.chart = chart;		this.group = null;		this.htmlElements = [];		this.dirty = true;	},	createGroup: function(creator){		if(!creator){ creator = this.chart.surface; }		if(!this.group){			this.group = creator.createGroup();		}		return this;	},	purgeGroup: function(){		this.destroyHtmlElements();		if(this.group){			this.group.clear();			this.group.removeShape();			this.group = null;		}		this.dirty = true;		return this;	},	cleanGroup: function(creator){		this.destroyHtmlElements();		if(!creator){ creator = this.chart.surface; }		if(this.group){			this.group.clear();		}else{			this.group = creator.createGroup();		}		this.dirty = true;		return this;	},	destroyHtmlElements: function(){		dojo.forEach(this.htmlElements, dojo._destroyElement);		this.htmlElements = [];	},	destroy: function(){		this.purgeGroup();	}});}