Bug 182670 ScriptedDataSet does not use the same classloader when ran for Parameters than when ran for the report
viewer/org.eclipse.birt.report.viewer/birt/WEB-INF/classes/org/eclipse/birt/report/utility/BirtUtility.java
else
		{
			writeMessage(
					response.getOutputStream( ),
					BirtResources.getMessage( "birt.viewer.error.noprinter" ), IBirtConstants.MSG_ERROR ); 					
		}
	}
	/**
	 * Returns toc style from TOCNode
	 * 
	 * @param node
	 * @return
	 */
	public static String getTOCStyle( TOCNode node )
	{
		if ( node == null )
			return null;
		IScriptStyle scriptStyle = node.getTOCStyle( );
		if ( scriptStyle == null )
			return null;
		
		String style = getStyle( scriptStyle, "getBackgroundAttachment", 
				"background-attachment" ); 
		
		style += getStyle( scriptStyle, "getBackgroundColor", 
				"background-color" ); 
		
		style += getStyle( scriptStyle, "getBackgroundImage", 
				"background-image" );