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SSI Random Image Displayer
##############################################################################
# SSI Random Image Displayer Version 1.2 #
# Copyright 1996 Matt Wright mattw@worldwidemart.com #
# Created 7/1/95 Last Modified 11/4/95 #
# Scripts Archive at: http://www.worldwidemart.com/scripts/ #
##############################################################################
# If you run into any problems while trying to configure this scripts, help #
# is available. The steps you should take to get the fastest results, are: #
# 1) Read this file thoroughly #
# 2) Consult the Matt's Script Archive Frequently Asked Questions: #
# http://www.worldwidemart.com/scripts/faq/ #
# 3) If you are still having difficulty installing this script, send #
# e-mail to: scripts-help@tahoenet.com #
# Include any error messages you are receiving and as much detail #
# as you can so we can spot your problem. Also include the variable#
# configuration block that is located at the top of the script. #
# #
# Hopefully we will be able to help you solve your problems. Thank you. #
##############################################################################
# COPYRIGHT NOTICE #
# Copyright 1996 Matthew M. Wright All Rights Reserved. #
# #
# SSI Random Image may be used and modified free of charge by anyone so #
# long as this copyright notice and the comments above remain intact. By #
# using this this code you agree to indemnify Matthew M. Wright from any #
# liability that might arise from it's use. #
# #
# Selling the code for this program without prior written consent is #
# expressly forbidden. In other words, please ask first before you try and #
# make money off of my program. #
# #
# Obtain permission before redistributing this software over the Internet or #
# in any other medium. In all cases copyright and header must remain intact.#
##############################################################################
This script is provided to allow you to have a random image appear on your
page every time it is reloaded. The server side includes version offers you
link flexibility as well as coinciding random alt text and other variables
which make it slightly more advanced than the Basic Random Image Displayer.
There are two files included with this script.
1) README - This file, which explains installation
2) ssi_rand_image.pl - The perl script which chooses the random image.
Below is a list of the changes that must be made to the ssi_rand_image.pl file
in order for it to choose your random images correctly:
Inside the script you will see a list of variables, which must be defined in
order for your script to work. Below is a description of how to define each
one:
$basedir = "http://your.host.xxx/path/to//images/008/";
The standard portion of my url for each image. This is the base
location of each image that is referenced in the next array @images. The
random image name chosen out of @images will be appended later on in the
script to form a complete url.
@images = ("first_image.gif","second_image.jpg","third_image.gif");
This is the name of each image. They can be whatever format you would
like, just make sure that when each of these filenames is appended to
$basedir, they form a complete url path to the image.
@urls = ("http://url_linked/to/first_image",
"http://url_linked/to/second_image",
"http://url_linked/to/third_image");
If you want each image to be accompanied with a link, then this is
your chance to do it. If you leave a field blank, then the script will assume
you do not have a url for that image and it will not link the image to
anything. So therefore, if you did not have a link for the second image in
the example above you could do:
@urls = ("http://url_linked/to/first_image",
"",
"http://url_linked/to/third_image");
@alt = ("First WWW Page","Second WWW Page","Third WWW Page");
This is the same idea as the @urls array. Each of these alt text fields
corresponds to the image located in the same array spot in @images, as well
as the same url located in the @urls array. If you don't want the alt text
for a certain image just leave the field blank as in the example of @urls
above.
---
There are also a number of options that you will need to define and decide
whether to use. They are located directly below the variables in the
ssi_rand_image.pl script.
$uselog = "1"; # 1 = YES; 0 = NO
At this point you must decide whether or not you want to use the
logging feature. for most practical purposes this will not be used, but some
people may find it helpful either for keeping stats or seeing which images get
picked the most. All the logging feature will record is the image, date, and
remote host that saw the image. Should you choose to turn this option on, you
will need to define two more variables:
$logfile = "/home/mattw/public_html/links/ssi_image";
The location of the log file. This must be in a
readable/writable directory and given read/write permissions for all
users so that the server's uid may edit the log file.
$date = `/usr/bin/date`; chop($date);
This is the location of your date function enclosed in '`' so
that it will be executed when it is called upon. It returns the date
function for logging purposes only.
$link_image = "1"; # 1 = YES; 0 = NO
If you turn this variable off you do not need to worry about what is
in the @urls variable. It simply won't link any of your images.
$align = "left";
This is the way in which you want your image aligned. Valid choices
for Netscape include: left, right, middle, absmiddle, bottom, and absbottom.
$border = "2";
This is the size you want your border to be. Mainly occurs when you
have images linked the border turns blue, and in Netscape you can control the
size. Setting this to zero causes there to be no border.
You can turn off both align and border by setting them equal to "" like:
$align = ""; or $border = "";
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Server Side Includes
I hope that you already know how to accomplish a Server Side Includes, and
therefore I am not going to go into detail about how. Two things you can
check for are:
1) Ask your sysadmin if you have access to server side includes and what you
need to change about your file to make them work. This often involves
changing your .html files to .shtml.
2) If you really don't know anything about Server Side Includes, you can
check out a great tutorial that NCSA has developed; located at:
http://hoohoo.ncsa.uiuc.edu/docs/tutorials/includes.html
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HISTORY:
Version 1.1: 9/30 - Corrections made to random image displayer to
add functionality of alt text, links, etc...
to each random image..
Version 1.2: 11/4 - Errors in alt="" tag not being noticed
correctly, and spacing being messed up fixed!
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The Random Image Script was written to be useful, and comes with no
warranties, express or implied. You can use this script freely, however you
want. You can modify it however you like, I would just ask two things:
1) Register it with me when you use it: This means send me the url of where
it is implemented. It can be done through the on-line form located at:
http://worldwidemart.com/scripts/implement.html
2) Keep my name in the scripts (and possibly on the html page) somewhere.
And last of all, ENJOY THE SCRIPT!
_____________________________________________________________________________
Matt Wright - mattw@worldwidemart.com - http://www.worldwidemart.com/scripts/
