Bug 150603 [Linux-WS]Can't open new window from the internal preview tab.
Can't open new window from the internal preview tab on Linux OS. Steps to reproduce: 1. New a report, create a link to drill through a report, target new window. 2. Click "Preview" tab to preview report 3. Click the link Expected result: Open a new window, and load the report. Actural result: No effect.
viewer/org.eclipse.birt.report.viewer/birt/WEB-INF/classes/org/eclipse/birt/report/context/ViewerAttributeBean.java
}
		
		ScalarParameterHandle parameter = (ScalarParameterHandle) findParameter( paramName );
		
		if ( defaultValueObj != null && parameter != null )
		{
			defalutValue = ParameterValidationUtil.getDisplayValue( null,
					parameter.getPattern( ), defaultValueObj, locale );
		}
		
		if ( defalutValue == null && parameter != null )
		{
			defalutValue = parameter.getDefaultValue( );
		}
		return defalutValue;
	}
	/**
	 * if parameter existed in config file, return the correct parameter name
	 * 
	 * @param configVarName
	 *            String
	 * @return String
	 */
	private String getParameterName( String configVarName )
			throws ReportServiceException
	{
		String paramName = null;
		
		List parameters = getParameterList( );
		if ( parameters != null )