Image Map Mechanisms

• Server-side image maps
  • Older technology

  • The browser sends the pixel coordinates of the mouse click within the image back to the server; the server then redirects the browser to the corresponding new web page

  • No longer commonly used

• Client-side image maps
  • Simpler -- the pixel coordinates reside in the web page itself rather than in a distinct file

  • Less work for the server -- the browser does it

  • Hovering the mouse, the user can see the URL associated with each area