Bug 141706 Interactivity on SVG chart didn't work in Viewer
Steps to reproduce: 1.New a SVG chart, add an interactivity on chart title 2.Preview report in Web Viewer and click chart title Expected result: Link to the target page Actual result: Interactivity didn't work
chart/org.eclipse.birt.chart.device.svg/src/org/eclipse/birt/chart/device/svg/SVGInteractiveRenderer.java
{
			logger.log( ILogger.WARNING,
					Messages.getString( "exception.missing.component.interaction", getULocale( ) ) ); 
			return;
		}
		
		if ( pre.getSource( ) instanceof StructureSource )
		{
			StructureSource sourceObject = (StructureSource) pre.getSource( );
			final Series series = (Series) getElementFromSource( sourceObject,
					StructureType.SERIES );
			if ( series != null )
			{
				if ( drawText )
				{
					svg_g2d.popParent( );
					svg_g2d.popParent( );
				}
				else
				{
					svg_g2d.setDeferStrokColor( null );
					svg_g2d.popParent( );
				}
			}
			else{
				
				if ((getElementFromSource( sourceObject,	StructureType.TITLE ) != null) ||
					(getElementFromSource( sourceObject,	StructureType.AXIS ) != null)||
					(getElementFromSource( sourceObject,	StructureType.CHART_BLOCK ) != null)||
					(getElementFromSource( sourceObject,	StructureType.PLOT ) != null)){