Bug 137142 Type in chart interactivity doesn't work.
Description: Type in chart interactivity doesn't work. Steps to reproduce 1. Insert a chart. 2. Set Title interactivity or other interactivity, set type to Mouse click, set Action Show Tooltip. 3. Preview. Expected result: When click mouse, tooltip shows. Actual result: When mouse moved over, tooltip showed.
chart/org.eclipse.birt.chart.device.svg/src/org/eclipse/birt/chart/device/svg/SVGInteractiveRenderer.java
String callbackFunction = "callback" + Math.abs( script.hashCode( ) ) + "(evt," + src.getSource( ).hashCode( ) + ");"; 
								elm.setAttribute( scriptEvent, callbackFunction );
								setCursor( elm );
								if ( !( scripts.contains( script ) ) )
								{
									svg_g2d.addScript( "function callback" + Math.abs( script.hashCode( ) ) + "(evt,source)" + "{" + script + "}" ); 
									scripts.add( script );
								}
							}
							break;
					}
				} 
			}
			hotspotLayer.appendChild( elm );
		}
	}
	/**
	 * Locates a design-time series corresponding to a given cloned run-time
	 * series.
	 * 
	 * @param seRT
	 * @return
	 */
	private final Series findDesignTimeSeries( Series seRT )
			throws ChartException
	{
		Series seDT = null;
		final Chart cmRT = _iun.getRunTimeModel( );
		final Chart cmDT = _iun.getDesignTimeModel( );
		if ( cmDT instanceof ChartWithAxes )