<meta HTTP-EQUIV="refresh" CONTENT="10">
could be modified to pass a control parameter with each refresh of the
same page.
Use the form of the CONTENT parameter to include the same url of the
page + one param
<meta HTTP-EQUIV="refresh" CONTENT="10; URL=slideShowParams.irev?
pImageNum =nextImgNumber">
-1- assume this page is "http://coolAccount.on-rev.com/slideShowParams.irev
-2- the following irev code is added to the slideShowParams.irev
document
<?rev
#Jacque's lists of copyrighted images (7)
get "vinca.jpg thistleFluff.jpg pinkHoneysuckle2.jpg"
get IT && "milkweed2.jpg lamiumClose2.jpg cosmos2.jpg
clematis3.jpg"
put IT into imageList
put $_GET["pImageNum"] into pImageNum
#detect conditions and react
((( my working IREV script will be in the next email )))
?>
-3- while still in the head section of the page use this line:
<meta HTTP-EQUIV="refresh" CONTENT="10; URL=slideShowParams.irev?
pImageNum=nextImgNumber">
so that you are defining pImageNum as a number for the next slide
of course, you could use any number, not just incrementing
-4- caution to note the exact location of the quotation marks
This line will also work using single quotes. Browsers honor both.
<meta HTTP-EQUIV='refresh' CONTENT='10; URL=slideShowParams.irev?
pImageNum=nextImgNumber'>
This example is using the same page URL 10 seconds from now to reload
the page and pass a parameter that will choose the next slide in
sequence. If pImageNum is missing, empty, or not a number, we use 1.
This is yet another way to get a slide show sequence in order.
((( my working IREV script will be in the next email )))
Working page for 10 second refresh is
http://ampower.on-rev.com/slideshow/slideShowParams.irev
Jim Ault
Las Vegas
On Dec 20, 2009, at 10:16 PM, J. Landman Gay wrote:
Sarah (and Sivakatirswami) wrote:
I would be very interested to see your code for this slideshow
please.
Ok, but it's almost too easy to post. There's a folder called
"cgiphotos" of flower images in the same directory as the irev page.
Inside that folder is also a text file named "cgiphotos.txt", which
contains a list of all the available photos. Each line of the list
has a file name as item one and a description as item two, like this:
daisies.jpg,Daisies
columbine2.jpg,Columbine
etc
In the html where I want the slideshow image to display, I choose a
random image and stuff that into the img src tag:
<?rev
put any line of url ("file:cgiphotos/cgiphotos.txt") into tFlower
?>
<img src="cgiphotos/<?rev put item 1 of tFlower ?>" width="320"
height="240" border="1" />
And later at the bottom of the page where I want the description to
appear:
<?rev put item 2 of tFlower" ?>
I just use the refresh directive in a header to reload the page
every ten seconds:
<meta HTTP-EQUIV="refresh" CONTENT="10">
Pretty easy. If you wanted the slide show to be in a strict order,
it would be harder. I think you'd need to either set up cookies, or
write the current line to disk and read that for each reload, then
update the counter in the text file with the next line number.
Or if you didn't want to keep a text file, you could read the files
in the directory and get the list that way too.
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