A solution is presented to keep track of the URLs that have been visited
within an HTML file, identify the location or exit point of the last line
that was displayed on a screen in a multi-screen HTML file, and return to
the exact exit point location upon reentry to the web page by computing
which section of the HTML file to display on the screen, and then
displaying this section. The identification of whether a web page has
changed after it has been visited by a user is also presented. A cyclic
redundancy check is performed, comparing the current cyclic redundancy
number with the last cyclic redundancy number obtained when the screen of
exited multi-screen HTML file was last visited. If the web page has
changed, the user has the option of viewing the web page at the top screen
or going to the screen that contains the last exit position of the HTML
file that was previously viewed.
