Bug 142689 All the shadow colors can not be take effect.
All the background shadow colors can not be take effect. Steps: 1.Create a chart 2.Open chart builder, go to "Format Chart" tab, select "Chart Area", click "Title Format", set shadow color to red 3.Preview Actual Resutls: 1.Shadow color can not be displayed Expected Results: 1.Shadow color can be displayed
chart/org.eclipse.birt.chart.device.svg/src/org/eclipse/birt/chart/device/svg/SVGGraphics2D.java
* 
	 * @param script the code that will be inlined in the generated svg output
	 */
	public void addScript(String script){
		scriptBuffer.append(script);	
	}
	
	/**
	 * Adds a script reference in the generated svg output.
	 * 
	 * @param ref the script reference that will be added to the generated svg output.
	 */
	public void addScriptRef(String ref){
		Element rootElem = dom.getDocumentElement( );
		Element scriptElem = dom.createElement( "script" ); 
		rootElem.appendChild( scriptElem );
		scriptElem.setAttribute( "language", "JavaScript" ); 
		scriptElem.setAttribute( "xlink:href", ref ); 		
	}
	public String getId() {
		return id;
	}
	public void setId(String id) {
		this.id = id;
	}
	/**
	 * Defer setting the stroke and color on an SVG element.
	 * 
	 * @return the state of the flag that ignores setting the stroke style and color on a svg element.
	 */