Bug 180118 Enhance to print out source stack trace in preview mode.[0002]
viewer/org.eclipse.birt.report.viewer/birt/WEB-INF/classes/org/eclipse/birt/report/utility/BirtUtility.java
return ""; 
		return cssAttr + ":" + style + ";"; 
	}
	/**
	 * Invoke GET method
	 * 
	 * @param obj
	 * @param methodName
	 * @return
	 */
	private static String invokeGetStyle( Object obj, String methodName )
	{
		String style = null;
		try
		{
			Method method = IScriptStyle.class.getMethod( methodName,
					new Class[]{} );
			if ( method == null )
				return null;
			Object value = method.invoke( obj, new Object[]{} );
			if ( value != null )
				style = (String) value;
		}
		catch ( Exception e )
		{
		}
		return style;
	}
}