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
tg,
					scriptEvent,
					bDblClick,
					subAction );
		}
		else if ( subActions.size( ) > 1 )
		{
			
			String callbackContent = getMultiActionsCallbackContent( action );
			StringBuffer callbackFunction = generateScriptCallbackFunctionName( callbackContent );
			String funcName= callbackFunction.toString( );			
			addCallBackScript( src, callbackFunction, false );
						
			boolean multipleTypes = false;
			for ( Action subAction : subActions )
			{
				if ( subAction instanceof MultipleActions )
				{
					continue;
				}
				
				
				int typeValue = subAction.getType( ).getValue( );
				switch( typeValue )
				{
					case ActionType.TOGGLE_VISIBILITY :
					case ActionType.TOGGLE_DATA_POINT_VISIBILITY :
					case ActionType.HIGHLIGHT :
						multipleTypes = true;
						break;