Bug 139391 [Regression]Chart interactivity didn't work well
Steps to reproduce: 1.Add a chart, add a drill-through interactivity to chart title 2.Preview in Web Viewer, click chart title Expected result: Link to the target report, and the report display in a new window correctly Actual result: Link to the target report in the "_self" window, and display the target report incorrectly (see the sreenshot)
chart/org.eclipse.birt.chart.device.svg/src/org/eclipse/birt/chart/device/svg/SVGInteractiveRenderer.java
{
	private Map labelPrimitives = new Hashtable( );
	private List scripts = new Vector( );
	/**
	 * Element that represents the hot spot layer
	 */
	protected Element hotspotLayer;
	private Map componentPrimitives = new Hashtable( );
	private IUpdateNotifier _iun;
	private static ILogger logger = Logger.getLogger( "org.eclipse.birt.chart.device.svg/trace" ); 
	SVGGraphics2D svg_g2d;
	private ULocale locale;
	private List cacheEvents = new ArrayList( );
	public SVGInteractiveRenderer( ULocale locale )