Thumbnails: Display thumbnails of image files from a directory

This is a simple class that can be used to display thumbnail versions of images of a given server directory.

The class traverses a given server directory and extracts the list of image files considering only those with file name extensions .jpg, .bmp, .gif, .png, .tga, .tif and .eps.

The image files are displayed in reduced size in a table of a given limit number of columns per row. The images are displayed as links that when clicked open a new window to display the respective image in full size.