Bug 312531 Highlight works differently when run SvgInteractivityViewer.java [13]
chart/org.eclipse.birt.chart.device.svg/src/org/eclipse/birt/chart/device/svg/SVGGraphics2D.java
* @param isClipped
	 *            boolean that determines whether to defer the clipping of the
	 *            element
	 */
	protected void setStrokeStyle( Element currentElement, boolean deferClipped )
	{
		Element element = currentElement;
		if ( deferStrokColor != null )
		{
			
			element = deferStrokColor;
		}
		String style = element.getAttribute( "style" ); 
		if ( style == null )
			style = ""; 
		if ( color != null )
		{
			style += "stroke:" + serializeToString( color ) + ";"; 
		}
		if ( ( stroke != null ) && ( stroke instanceof BasicStroke ) )
		{
			BasicStroke bs = (BasicStroke) stroke;
			if ( bs.getLineWidth( ) > 0 )
				style += "stroke-width:" + bs.getLineWidth( ) + ";"; 
			if ( bs.getDashArray( ) != null )
			{
				String dashArrayStr = ""; 
				for ( int x = 0; x < bs.getDashArray( ).length; x++ )
				{
					dashArrayStr += " " + bs.getDashArray( )[x];