Dr. Website ® Archives 2001 / WebDeveloper.com ®


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Dr. Website® Archives 2001

August 16, 2001

Question:

Thanks

Answer:
Unfortunately, a link from an animated gif is no different than a link from any other gif. The link is not referenced by the frames in the animation, so there is no way to dynamically alter the link when each frame plays. Your best bet, if you wish to do it that way, is to use a Java applet that rotates through several images, each with its own URL. You can find such an applet here: http://www.javaboutique.com/
Thanks,

-- Dr. Website

Question:
Dear Dr. Website:
Thanks for your great site and the offer to answer questions!

I use the following code on my site to have photos pop up when a visitor clicks on a thumbnail.

----------

function popupwin(ImageName,Desc,Date,Location) { var PicDir = "./pix/";

var PicHTML = "";

PicHTML += "<html>\n<head>\n<title>\n</title>\n</head>\n"; PicHTML += "<body background='./bindertile1.gif'>\n<BLOCKQUOTE><BLOCKQUOTE>\n<table border='1' cellpadding='3'>\n"; PicHTML += "<tr><td colspan='2' align='center'><img src='" + PicDir + ImageName + "'></td></tr>\n"; PicHTML += "<tr><td colspan='2' align='center'><b>" + Desc + "</b></td></tr>\n"; PicHTML += "<tr><td><b>Location: </b>" + Location + "</td>"; PicHTML += "<td><b>Date: </b>" + Date + "</td></tr>\n"; PicHTML += "</table>\n</BLOCKQUOTE></BLOCKQUOTE>\n</body>\n</html>";
parent.right.document.open(); // start of popup window parent.right.document.write(PicHTML); // writes html in the page parent.right.close(); // ends of popup window }

---------- No problems with the code - it works well.

I have several java scripts in a folder called "Java" and references to the folders on my various pages.

The above script refers to: var PicDir = "./pix/";

I now have some additional photos in a folder called /chinaphotos. I can get the script to work with either folder but not with two of them.

I am an amateur at this and the answer is probably obvious but I've spent hours trying to get it to work right with no success.

Your help would be much appreciated.

thanks,

Answer:
You should be able to use the following at the beginning of your function (just a small addition to what you are already using):

function popupwin(Dir,ImageName,Desc,Date,Location) { var PicDir = Dir;

then just place the dir name where you call the function, like this: popupwin("chinaphotos","pic1.jpg","this is my pic","June1","china")
Thanks,

-- Dr. Website

Question:
Dear Dr. Website:
My company has designed a short Flash animation to run when a user enters our site, but we want the user to be redirected to another starting page if he/she does not have the Flash plugin installed. How can we detect if the incoming user has Flash? I've seen it done on other sites, so I know it's possible.

Great Web site.
Thanks!

Answer:
Here is a method you can use to detect the Flash plugin, and if they don't have it, to redirect them to a non-Flash page (and it doesn't even use JavaScript!)
Thanks,

-- Dr. Website

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