public static Set<ImageDes> analyzeImages(Page p){
		logger.debug("find the imageUrls  analyzeImages begins! -----------------------------------------");
		dateHelper.start();
		Set<String> httpUrl = p.getHrefUrl();
		Set<ImageDes> imageDeses = new HashSet<ImageDes>();
		for(String url: httpUrl){
			String suffix = url.substring(url.lastIndexOf('.')+1, url.length());
			
		if(	suffix.equalsIgnoreCase("bmp")||suffix.equalsIgnoreCase("jpg")||suffix.equalsIgnoreCase("tiff")||suffix.equalsIgnoreCase("gif")||suffix.equalsIgnoreCase("pcx")||suffix.equalsIgnoreCase("tga")||suffix.equalsIgnoreCase("exif")||suffix.equalsIgnoreCase("jpeg")){
			//imageUrl.add(url);
			ImageDes imageDes = new ImageDes(url,url.substring(url.lastIndexOf('/')+1, url.lastIndexOf('.')),suffix);
			imageDeses.add(imageDes);
		}
		}
		logger.debug("find the imageUrls  analyzeImages end! lasts"+dateHelper.end()+"   "+imageDeses.size()+" images url is found!-----------------------------------------");
		return imageDeses;
	}