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Have you seen one of those post-it pop-up? The one that looks so
realistic, with awesome shadow effect. If you don't know what I
am talking about, try opening the following website:
http://myhobbybooks.com/wowpo
p
They look awesome don't they?
And something like this is always good for your web marketing
campaign. One reason, it never gets blocked by pop-up blockers.
And another, it really grabs the attention of your web visitors.
This is good when you want to increase subscription rate to your
ezine, or promote an affiliate program, or even increase sales.
But you wonder, how do they do it? You thought that you can
achieve similar result, and you try, and try, and try... you
tried GIF image, JPG image, none of those can get the job done.
But there's one thing that you just don't know. Many pro web
programmers know this, but not the normal web designers ...
maybe even most web designers don't know how to do this.
The secret is in PNG image format.
PNG image format is the little-known image format that you can
use on the web. PNG image format is unique because you can do
the Alpha effect with it. The Alpha effect is where you set
transparency factor on certain areas on the PNG image. That is
what makes the shadow looks so real.
With the Alpha effect, you can set transparency factor from 0%
to 100%. So it can be 30% transparent, 50% or even 79%. Have a
look at the pop-up again, and take a close look at the shadow -
Now you know how it's done.
But there is just one problem - Internet Explorer don't really
support PNG image format. While you can still call PNG image
format using the IMG tag, Internet Explorer ignores Alpha
factor. In Internet Explorer, PNG image just don't appear
properly.
So how do we solve this ...
Luckily you can still call PNG image in Internet Explorer and
have the Alpha reflected using a special CSS command. It's the
AlphaImageLoader().
But this will lead to another problem. Before you can call the
PNG image, you first need to identify the browser your web
visitor is using. If the visitor is using Firefox, Opera,
Netscape or any others, you can call the PNG using the IMG tag.
But if it's Internet Explorer, you need to use the
AlphaImageLoader().
And of course, this can always be solved with a bit of
Javascripting. And with a little more Javascript and CSS, you
can have the PNG image floating over your web content. You can
even make the pop-up disappear using the OnClick event trigger.
If you'd like a complete code and PNG image to your own
photorealistic post-it pop-up, try visiting WOW Pop-Up. Below is
the URL address for WOW Pop-Up where you can get a free set of
the code and the PNG graphic.
About the author:
Iszuddin Ismail published the WOW Pop-Up and is giving away free
code and PNG graphics to your own photorealistic post-it pop-up.
Get a set of four PNG pop-up graphics for free.
http://WOWPopUp.com
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