Bug 312531 Highlight works differently when run SvgInteractivityViewer.java [13]
chart/org.eclipse.birt.chart.device.svg/src/org/eclipse/birt/chart/device/svg/SVGInteractiveRenderer.java
if ( components.size( ) > 0 )
					{
						idTemp = id + "@" + components.size( ); 
					}
					components.add( idTemp );
					
					
					Element primGroup = svg_g2d.createElement( "g" ); 
					svg_g2d.pushParent( primGroup );
					primGroup.setAttribute( "id", groupIdentifier + "_" + idTemp ); 
					primGroup.setAttribute( "style", "visibility:visible;" ); 	
					svg_g2d.setDeferStrokColor( primGroup );
				}
			}
		}
	}
	/**
	 * UnGroups the svg drawing instructions that represents this primitive
	 * events.
	 * 
	 * @param pre
	 *            primitive render event
	 * @param drawText
	 *            TODO
	 */
	protected void ungroupPrimitive( PrimitiveRenderEvent pre, boolean drawText )
	{
		if ( _iun == null )
		{
			logger.log( ILogger.WARNING,