Element.js
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Element.js
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	/*
	Copyright (c) 2004-2009, The Dojo Foundation All Rights Reserved.
	Available via Academic Free License >= 2.1 OR the modified BSD license.
	see: http://dojotoolkit.org/license for details
	*/


	if(!dojo._hasResource["dojox.charting.Element"]){
	dojo._hasResource["dojox.charting.Element"]=true;
	dojo.provide("dojox.charting.Element");
	dojo.declare("dojox.charting.Element",null,{constructor:function(_1){
	this.chart=_1;
	this.group=null;
	this.htmlElements=[];
	this.dirty=true;
	},createGroup:function(_2){
	if(!_2){
	_2=this.chart.surface;
	}
	if(!this.group){
	this.group=_2.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(_3){
	this.destroyHtmlElements();
	if(!_3){
	_3=this.chart.surface;
	}
	if(this.group){
	this.group.clear();
	}else{
	this.group=_3.createGroup();
	}
	this.dirty=true;
	return this;
	},destroyHtmlElements:function(){
	if(this.htmlElements.length){
	dojo.forEach(this.htmlElements,dojo.destroy);
	this.htmlElements=[];
	}
	},destroy:function(){
	this.purgeGroup();
	}});
	}