Bug 169829 text-anchor style in svg chart is not right.
In svg, text-anchor style support start, middle and end values. But in the attached svg chart, there is a wrong value like left. So when use batik to tranfer the svg to be a image, the batik throw a NPE.
chart/org.eclipse.birt.chart.device.svg/src/org/eclipse/birt/chart/device/svg/EventHandlers.java
/***********************************************************************
 * Copyright (c) 2005, 2006 IBM Corporation.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 * IBM Corporation - initial API and implementation
 ***********************************************************************/
package org.eclipse.birt.chart.device.svg;
/**
 * This class provides javascript helper functions to enable user interactions
 * such as tooltip support. Defines default styles for svg elements.
 */
public final class EventHandlers
{
	public static StringBuffer styles = new StringBuffer( ).append( ".tooltip.text{ text-anchor:left;font-size:12pt;fill:black;}.tooltip{fill:rgb(244,245,235)}" ); 
	public static StringBuffer content = new StringBuffer( ).append( "function BuildHelper(tag, attrList, text) {\n" )