Register · Software · Search · Image Upload · Buy & Sell · Reviews · Hosting

Moderated by: Hendrik, guardian
Username   Password

Visit the FM Store · Image Upload · Buy & Sell
FM Actions & Plugins support
Workflow Guidelines
FM Forums | Post-processing & Printing | Join Image Upload
end
Go to previous topic Go to next topic
Steady Hand
Online
Buy and Sell: On
p.1 #1 · Javascript Rollovers on HTML site: Pitfalls?


Hello this is my first post in this forum/room.

I am asking this in this forum because I believe it has to do with "post processing" of images (in this case to display on a website).

I am not a software guru and have only basic level understanding of many things. In this case my ignorance leads me to ask you some basic questions. Pardon my ignorance but if you can answer the questions in a 'layman's terms' way I would find it helpful.

I recently designed a new website featuring "rollovers" (using a javascript object for each image) and now I have a few questions:

1. Does the use of a "rollover" using Javascript mean that people who have "Javascript turned off" will not be able to see my photos?

2. Are there good reasons to have Javascript turned off?

3. How and where does one turn off Javascript?

4. Can you tell me how to tell the web visitor how to "turn on Javascript" in detail so a computer challenged person like me could easily do it?

5. Could a visitor's antivirus software (or firewall software) be preventing the visitor from seeing my photos if the Javascript rollovers I use are somehow in conflict with their AV software or firewall sw?

The rollovers were chosen as part of the web design in order to have a copyright notice below the images. I would like to keep this feature (a personal choice) but I am concerned that perhaps something I don't know about javascript (on or off) may prevent some people from seeing the images.

Thanks in advance for any guidance.

Feb 10, 2008 at 06:57 PM
BenV
Online
Buy and Sell: On
p.1 #2 · Javascript Rollovers on HTML site: Pitfalls?


Javascript is essentially always turned on, granted they have the program installed.

1) if you are using javascript rollovers, and they do not have java installed, then no, they wont be able to view it.

2) not really, it runs and closes itself automatically, so you never really need to worry about it. It only runs when a web page invokes it

3) Only way I know is in safe-mode or to uninstall it

4) link them to the java site, they need to install it

5) no, but there are scripts for firefox that will disable java

Feb 10, 2008 at 07:01 PM
Steady Hand
Online
Buy and Sell: On
p.1 #3 · Javascript Rollovers on HTML site: Pitfalls?


Hi Ben,

I appreciate your good answers so quickly.

I am recommending on my website that the viewer use Firefox to view the site as I designed it to be viewed via Firefox.

I also put a link on the second page to download Firefox.

Now I am concerned that all of the Firefox users out there won't see my photos if they have that javascript disabled feature turned on.

Any other suggestions?



Feb 10, 2008 at 07:36 PM
simonit
Offline
Image Upload: Off
p.1 #4 · Javascript Rollovers on HTML site: Pitfalls?


In answer to some of your questions:

2. Usually only very security minded people would actively block javascript applets from running on a website.

3. You don't turn Javascript off as such (as already mentioned) but it can be blocked/filtered using the advanced security settings in your web browser (but once again, most people usually have the default settings only).

...other answers as per BenV.

Just a side note, why would you design a website for Firefox or recommend that it be viewed in Firefox? While mozilla are making great gains, 90% of the world is still using internet explorer (depending on whose figures you read), 9% firefox and 1% other.

The real answer is to make your website cross-browser compatible so as not to eliminate any of your potential viewers.

Cheers, Simon.

Feb 11, 2008 at 06:32 AM
nanscombe
Offline
Image Upload: Off
p.1 #5 · Javascript Rollovers on HTML site: Pitfalls?


Hi All,

Just a little clarification, Javascript and Java are two different things.

Javascript is a scripting language which is built in to the browser.

Java is a programming language used to create separate applications, or applets, which can be embedded into the Web page.

Incidently, Java can also be used outside of a browser and can even be used to build entire applications.

As to your questions:

1. It depends how your images are displayed, if they are embedded into the Web page using HTML then they will be able to see them. It would be the Javascript actions that would not be displayed, if Javascript were turned off.

2. As it has been already said, some people consider malicious Javascript to be a possible security hole and turn the functionallity off.

3. Below is a link to a site showing how to turn Javascript on / off in Internet explorer and Firefox.

http://www.tranexp.com/win/JavaScript-enabling.htm

4. Normally Javascript is turned on by default. If someone has deliberately turned it off, I don't think they would necessarily turn it on again without good reason.

5. IMHO I don't believe that a Firewall or Virus scanner would stop the Javascript running. However if it included opening new browser windows, the browser itself might potentially stop it happening.

Regards
Nigel

Edited on Feb 11, 2008 at 08:14 AM


Feb 11, 2008 at 08:09 AM
UCSB
Offline
Image Upload: Off
p.1 #6 · Javascript Rollovers on HTML site: Pitfalls?


ditto on nanscombe's comments. Javascript, java, Microsoft ActiveX applets are all different things. Javascript is a basic part of the browser. I just ran stats on my web site for the past three months using Google Analytics. I had visitors from about 50 countries. According to Google Analytics 99.07% of them had javascript enabled. If they do not have Javascript enabled they will just get the first image. You can test this yourself by just increasing the security on your browser and going to your own site.

A bigger surpise for many is that 98.08% have some version of Flash available.

Good luck,
Bill.

Edited on Feb 11, 2008 at 09:56 AM


Feb 11, 2008 at 09:52 AM
David Harpor
Offline
Image Upload: Off
p.1 #7 · Javascript Rollovers on HTML site: Pitfalls?


Any decent site should run on FF, IE 6/7, Safari, and Opera whether Javascript is enabled or not. JS is to facilitate interaction but should never be a must.

There are some very good reasons to disable JS, ActiveX (if running Windows), and Flash, but not many people get around to doing that. A lot depends on who you're marketing. If it's for fellow photogs, most will be running Safari or FF on OSX with all the latest updates. If it's just standard soccer moms looking for shots of their kids, you'll have a lot more IE users with potentially frigid antiviruses. Most of the browser stats are skewed because very few sites (other than Google, Yahoo, MSN, etc.) offer something to every demographic. Tech/photography sites will always have a higher percentage of FF users who know what they're doing while, say, a recipe site will be clogged with n00bs on IE 4. Either way, there's no excuse for requiring a "Site designed to run at 1024x768 on Firefox 2.0.0.12. Good luck if you've got anything else" disclaimer.

Feb 11, 2008 at 06:59 PM
Steady Hand
Online
Buy and Sell: On
p.1 #8 · Javascript Rollovers on HTML site: Pitfalls?


Wow. Thanks to everyone for the nice answers.

You provided me with good information and in a good way (thanks for no flaming).

I read all with great interest and because everyone was writing so well and clearly, I think I understand your points.

Just today I looked at my site from two locations (two different cities) and viewed the site using both Firefox (my standard) and IExplorer. It looked good (formatted well) with both. When I designed the site (self built) I did test and format for at 1024x768 monitor and when I tested it extensively, I never had a problem with the text overlapping issue some have described. Then again, I have had several reports of this. So it must happen to some people some of the time.

Today, pages loaded in about 1 second each page (each page has a photo on it). So it seemed fast enough too. Both locations had cable modems and the cache had been cleared from ram.

Still I have had other folks here in the USA mention that the pages have text that is 'overlapping' and pages where the photos do not show for some reason.

Also, I notice when I view a site (even here at FM) I occasionally cannot see photos on a site if I move to another page. For example, if I visit my site, and go forward page by page, and then go back later, some of the images do not show at all. If I click the 'reload' button on the browser I still don't see the images. I also see this here on FM if I view a thread and then come back later (same hour) and the images do not display. In fact as I was writing this post, I checked my site again and even the first page (home) the image is missing and on several other following pages there may be one image missing or one out of two missing.

Can anyone suggest why this happens?

My biggest concern is the easy viewing of the photos on my site.

By the way, my website is: www.steadmanuhlich.com

If you visit it and see the pages messed up or missing photos, let me know (and your browser used).



Edited on Feb 15, 2008 at 05:10 AM


Feb 15, 2008 at 05:07 AM
christo™
Offline
Image Upload: On
p.1 #9 · Javascript Rollovers on HTML site: Pitfalls?


Anyone running with Javascript to disabled for your site is probably used to sites not working right, and likely knows about the settings as I don't know of a browser that comes with Javascript that disabled by default. I wouldn't worry about it so much.

I mostly use IE 7, but just looked in FireFox and IE and saw no problems with dissappearing pictures. I just updated FireFox a couple weeks ago. The site, however, for some reason is really, really, slow. May be just temporary, but I just cruised around a bunch of other sites and nothing else is slow now.

Your pix are nice. My main issue with the site is that it's really busy and there is way too much text for my tastes. Is it an image art site or a text embellished with small images site? I'm not trying to be insulting, but in my experience the general public has a very limited attention span and won't read most of what you have so painstakingly put up there no matter how valuable the information is.

Feb 15, 2008 at 10:52 PM
Steady Hand
Online
Buy and Sell: On
p.1 #10 · Javascript Rollovers on HTML site: Pitfalls?


christo™ wrote:
Anyone running with Javascript to disabled for your site is probably used to sites not working right, and likely knows about the settings as I don't know of a browser that comes with Javascript that disabled by default. I wouldn't worry about it so much.

I mostly use IE 7, but just looked in FireFox and IE and saw no problems with dissappearing pictures. I just updated FireFox a couple weeks ago. The site, however, for some reason is really, really, slow. May be just temporary, but I just cruised around a bunch of other sites and nothing else is slow now.

Your pix are nice. My main issue with the site is that it's really busy and there is way too much text for my tastes. Is it an image art site or a text embellished with small images site? I'm not trying to be insulting, but in my experience the general public has a very limited attention span and won't read most of what you have so painstakingly put up there no matter how valuable the information is.


Hi Christo.
Thanks for your comments and response.

I am not sure what would cause it to be slow now. I am sorry it was slow for you. I just checked now (after a browser cache clean) and the pages load in about 1 second each and that includes pages with photos on them and lots of text. So, that is my 'goal.' That means someone could potentially view all 275 pages in about 275 seconds (4.5 minutes) if they only flipped the pages after a second each.

The site I linked is my site designed like an "art book" and so has heavy use of text and explanatory information along with photos that illustrate the topics. So, yes, it is designed to be like a book with photos (in a sense) and not like a thumbnail gallery of just photos. I also have links to three very basic Flash galleries that have no text at all and only a subset of images. So one can look at 'just pictures' or 'pictures and text' (if they want to read and learn more). Additional "photo only" and ecommerce sites will be developed later this year to showcase my 'art' photos (photos for sale). The current site is a broad overview of my work in multiple media.

I understand your POV but do not share it regarding the site design (text heavy) as it was designed to replace documents and to reduce the time I spend answering questions about my work. I have spent hundreds of hours answering many questions time and time again for prospective clients and so created the site to answer them in writing (and without my involvement) in the 'research' stage so many of my clients go through. As I mentioned, the site is intended for my clients and not for the typical audience of web surfers or even photographers. It helps me.

Once again, I do appreciate your input/comments. Thank you.

Feb 15, 2008 at 11:31 PM
christo™
Offline
Image Upload: On
p.1 #11 · Javascript Rollovers on HTML site: Pitfalls?


Steady: Well that explains it, not so much POV as different audience. Serious customers looking for art are a whole 'nother matter from the people generally looking at my stuff. I understand getting sick of answering the same questions time and time again. Judging by the info you have up there at least the audience you're dealing with asks somewhat interesting questions.

The slow down could be the time of day easily, I'll look at it tonight when the 'net is cleared up.

Edited on Feb 15, 2008 at 11:53 PM


Feb 15, 2008 at 11:50 PM

FM Forums | Post-processing & Printing | Join Image Upload
end
  Go to previous topic Go to next topic

You are not logged in. Login or Register

  Username   Password  
Lost password?