Bug 128590 Tooltip of chart didn't show completely.
Description: Tooltip of chart didn't show completely. Steps to reproduce: 1. Preview attached report. 2. Move mouse from bottom/right into the chart. Expected result: Tooltip shows. Actual result: Tooltip didn't show completely.
chart/org.eclipse.birt.chart.device.svg/src/org/eclipse/birt/chart/device/svg/SVGRendererImpl.java
if (this.scriptRefList != null){
			for (int x = 0; x< scriptRefList.size(); x++){
				String ref = (String)scriptRefList.get(x);
				((SVGGraphics2D)_g2d).addScriptRef(ref);				
			}
		}
	}
	/**
	 * 
	 * @param os
	 * @throws RenderingException
	 */
	public final void after( ) throws ChartException
	{
		super.after( );
		
		
		processDataPointHotspot();
		addScripts();
		((SVGGraphics2D)_g2d).flush();		
		
		
		dom.getDocumentElement().appendChild(hotspotLayer);
		
		if ( oOutputIdentifier instanceof OutputStream ) 
		{
			try
			{
				writeDocumentToOutputStream( dom,
						(OutputStream) oOutputIdentifier );