Imagemaps allow the user to click on predefined sections of a graphic picture on your page and have the server respond as if they clicked on a text hyperlink. A complete tutorial is available including a sample imagemap and helpful tools. You are encouraged to review the entire tutorial. Download a mapping program to create a map file based on the desired image. The map file will contain the coordinates of each clickable region.
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This method allows for secure, encrypted communication between the user's web browser and your web site. You will have to obtain your own Certificate. Yes, you can password protect specific directories within your website. You can begin assigning unique ids and passwords by selecting Edit Access in your Control Panel. As such, visitors will be prompted for id and password to gain access to any web page within such a directory.