code: public static String getImageUrl(String imgSrc, PageContext pageContext) {
  		BinaryResourcesHandler imgRsHandler = (BinaryResourcesHandler) pageContext.getServletContext()
  				.getAttribute(JawrConstant.BINARY_CONTEXT_ATTRIBUTE);
  		if (null == imgRsHandler)
  			throw new JawrLinkRenderingException(
  					"You are using a Jawr image tag while the Jawr Image servlet has not been initialized. Initialization of Jawr Image servlet either failed or never occurred.");
  
  		HttpServletResponse response = (HttpServletResponse) pageContext.getResponse();
  
  		HttpServletRequest request = (HttpServletRequest) pageContext.getRequest();
  
  		return getImageUrl(imgSrc, imgRsHandler, request, response);
  
  	}
docs: Sames as its counterpart, only meant to be used as a JSP EL function.
  
  @param imgSrc
  the image path
  @param pageContext
  the page context
  @return the image URL