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Preloading Images

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                    THE INTERNET TUTOR
                      July 13, 2006
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This week...

- Webmaster Tip: Preloading Images
- Surfin' the Web: Assistive Media
- Software Spotlight: Private Label
- The Oddball Wall: Unconventional Inventions
- Computer Tip: Saving Frozen Work
 
Gliddy glub gloopy
Nibby nabby noopy
La la la lo lo
Sabba sibby sabba
Nooby abba nabba
Le le lo lo
Tooby ooby walla
Nooby abba naba
Early morning singing song
 
Those are some of the lyrics from the song Good Morning Starshine.
Everyone in favor of IQ tests for songwriters raise your hand.
 

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  4 Decades, 3 Talented Voices, 2 Hours, 1 Night Only...
       The Bee Gees: One Night Only Live on DVD

In 1997, musical legends "the Bee Gees" topped off a year 
which included inductions into both the Rock N’ Roll and 
Songwriters Halls of Fame (among the many honors of the year), 
with their only live performance of the year from the MGM 
Grand in Las Vegas, One Night Only. Their first US concert 
in nearly 10 years featured many of the hits from their 
performing and songwriting careers. This one of a kind DVD
is available now for the low price of $17.99 when you visit: 

Bee Gees Live on DVD
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WEBMASTER TIP - Preloading Images
 
Note: In code examples I add a period after each left arrow
bracket so the code can be viewed in all e-mail programs. If you
copy and paste, be sure to remove the periods or it won't work.
 
Question: I used to have a script for preloading images but can't 
seem to find it. Can you tell me how to preload images?
 
Simon Says: Preloading images is done with JavaScript, so it only
works with JavaScript capable browsers, but that's most of the
browsers in use.
 
Preloading images is useful for two purposes. The first and most
common use is on pages where there is an image rollover effect
present like on a navigation menu where one image is shown until 
the cursor is placed on it, then another image is shown. Preloading 
the images that change on mouseover prevents a delay between states.
 
The other use is sometimes when it's reasonable to predict which 
link will be clicked, preloading any images that exist on the next 
page allows that page to load that much faster.
 
Here's the script:
 
<.script language="text/JavaScript">
//Courtesy BoogieJack.com
//pre loader
newimage0 = new Image();
newimage0.src = "cat.gif";
newimage1 = new Image();
newimage1.src = "dog.jpg";
<./script>
 
Just place that script in the HEAD section of your page. Change 
the image names and extensions to the actual names and extensions 
of your images, and be sure to include the correct path to the 
image if it's not in the same directory as the HTML page
 
If you need to add more images just increase the lines as shown 
below.
 
newimage2 = new Image();
newimage2.src = "imageThree.gif";
newimage3 = new Image();
newimage3.src = "imageFour.jpg";
 
...and so on. There will be two lines for each image you add. Be 
sure to change the "newimage" number if you add lines.
 

------------------------------------------------------------
Lose Weight Now: Oprah & 60 Minutes Agree Hoodia Works

Curb Your Cravings(R) Hoodia Patch System is here to help you.
All natural Hoodia is an appetite suppressant: You can
eat less, reduce your calorie intake and the lose weight. 

 "I'd have to say Hoodia did work" - Leslie Stahl, 60 minutes

Get your One (1) Week Free* Trial. 100% Satisfaction Guarantee.
Visit: Lose Weight Now with Hoodia
------------------------------------------------------------
 

SURFIN' THE WEB - Assistive Media
 
Assistive Media provides audio access to reading materials for 
anyone with a reading access barrier. Assistive Media works to 
heighten the educational, cultural, and quality-of-living 
standards for people with disabilities by providing free, 
copyright-approved, high-caliber audio literary works to the 
world-wide disability community. 
 
I didn't see any restrictions against people without disabilities 
to listen to the files, which are available without registration. 
If you listen and don't have disabilities, I'm sure this non-
profit organization would appreciate a donation via Paypal to 
help offset the costs of providing this service.
 
Talented volunteers record magazine articles and other short works 
which are then available for download in MP3 or Real audio format, 
or by podcast. There are over 800 recordings so far from magazines 
like The New Yorker, Smithsonian, and Wired.
 
http://assistivemedia.org/
 
------------------------------------------------------------
 
          GopherCentral's Question of the Week
 
Do you believe that North Korea's missile launches are a 
threat to the US?
 
 Please share your opinion, visit: The Question of the Week
 
------------------------------------------------------------
 

SOFTWARE SPOTLIGHT - Private Label
 
Do you know what private label rights are? When you buy something 
with private label rights is usually means you can use the content 
as your own. You could claim it as yours, change it, give it away, 
or sell it.
 
This is a bit of a different software feature this week, because 
I'm linking you to several private label products you can have 
for free. There is software, ebooks, articles for content, and 
quite a bit of it considering that it's free.
 
When you sign up to get the free stuff, before downloading you'll 
be able asked if you want to purchase several other programs that 
come with various rights. If you don't want to buy anything, 
there's a link at the bottom of that page with the purchase off 
that you can click to bypass the sales offer and go directly to 
the download page. That's what I did, but I was pretty tempted to 
buy the package offered, it looked well worth the money. I didn't 
though, once I reminded myself I was there for research.
 
There is some pretty good stuff that won't cost you a penny, so 
it's worth a look. There are 7 ebooks, 4 software titles, 50 
photoshop header templates, 100 articles and more. The landing 
page will explain it all.
 
http://xrl.us/Private
 
Note: I do not provide support for the featured software. Contact 
the software vendor for support. No warranty is made or implied 
as to the usefulness or appropriateness of featured software.
 

------------------------------------------------------------
Always Know Where Your Sunglasses Are
With The Sunglass Visor Clip

Finally -- a useful car accessory. Keep your sunglasses in 
arms reach at all times with the new sunglass visor clip. 

Just clip it to your visor for a safe and easy way to store 
your glasses. Simply pop open the visor clip, insert your 
shades into the scratch-free foam interior and snap shut for 
security... it's that easy. No more lost sunglasses - Ever.

It doesn't just hold glasses. Also works great as a belt clip 
or book mark. Use it to hold pens, pencils or anything else...
the possibilities are endless. Pick up your Sunglass Visor
Clip today just $2.99 by visiting: Sunglass Visor Clip
------------------------------------------------------------
 

THE ODDBALL WALL - Unconventional Inventions
 
On this day in 1963, baseball pitcher Early Wynn records his 300th 
in the last game he played. At age 43, I guess you could say that 
was a late win for Early Wynn.
 
Come on now, don't moan, you'd have made that same play on words if
you were writing this.
 
Anyway, on this day in 1836 US patent #1 (after 9,957 unnumbered
patents) was issued for locomotive wheels. Not all patents were as
useful as that. Your job is to guess which idea was a real patented
product and not one I made up. The patent may or may not be US issued.
 
1) Choose the real patented product:
a. A ladder for spiders to climb out of bathtubs
b. A nose vacuum for removing...well, you know
 
2) Choose the real patented product:
a. Rubber waders for cats
b. Spectacles for chickens
 
3) Choose the real patented product:
a. Stick-on defects to lower a home's value during tax assessments
b. A surgical procedure to make goats look (sort of) like unicorns
 
4) Choose the real patented product:
a. A pre-shaped leash and collar for walking an imaginary pet
b. A "nose bucket" to catch runny noses
 
5) Choose the real patented product:
a. A ten-fingered glove so couples can hold hands in winter
b. Waterbed shoes for the ultimate in comfort, walk on water
 
6) Choose the real patented product:
a. A doorbell that tells the person ringing it to get lost
b. An ashtray that warns you to quit smoking as you light up
 
7) Choose the real patented product:
a. A "mouth cage" that locks onto your head to prevent eating
b. Crowns/caps for your teeth that glow in the dark
 
8) Choose the real patented product:
a. A "Y" shaped straw for sweethearts to share a drink
b. A baseball cap with finger holes so fans can catch foul balls
 
And now for one that's patently offensive...
 
9) Choose the real patented product:
a. Septic tank alarm that makes "fart noises" when the tank's full
b. Toilet hole light to see where you're going in the dark
 
Answers below, here's the scoring:
 
9 correct: Perfection!
7-8 correct: Outstanding
5-6 correct: Very Good
2-4 correct: Fairly Fair
0-1 correct: Turn the TV off
 
Answers:
 
1) a. A ladder for spiders to climb out of bathtubs.
2) b. Spectacles for chickens
3) b. A surgical procedure to make goats look (sort of) like unicorns
4) a. A pre-shaped leash and collar for walking an imaginary pet
5) a. A ten-fingered glove so couples can hold hands in winter
6) b. An ashtray that warns you to quit smoking as you light up
7) a. A "mouth cage" that locks onto your head to prevent eating
8) b. A baseball cap with finger holes so fans can catch foul balls
9) b. A toilet hole light to see where you're going in the dark
 

------------------------------------------------------------
 

COMPUTER TIPS - Saving Frozen Work
 
Suppose you're sitting at your computer working on file when your
program freezes. You don't want to lose the work you've accomplished,
so what do you do?
 
Your may be able to save your work so don't force the program closed
just yet. Instead, try one of these two methods to save your file.
 
Method 1
 
1) Press the Ctrl and S keys on your keyboard.
2) If that worked, you can probably press Ctrl + F4 to close the
   file you just saved.
 
Method 2
 
1) Hold down the ALT key, and press the F key to open the file menu.
2) Use your arrow keys to navigate down to the SAVE option.
3) Once Save is highlighted, press Enter to save your work.
4) Repeat the process to select CLOSE and close your saved file.
 
Now that you've saved the work you almost lost, rush to the post
office and send me a dollar for pulling your bacon out of the fire!
 
Disclaimer: Advice in this column is presented as informational
and is true to the best of my knowledge. Any decisions to follow
this advice is your responsibility. Your computer, your choice.


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Until next week, ponder these words of Carl Jung: Your vision will
become clear only when you look into your heart. Who looks outside,
dreams. Who looks inside, awakens.

Have an interesting day, Simon

Questions? Comments? Email me at: tutor@gophercentral.com

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