Improve company productivity with a Business Account.Sign Up

x
  • Status: Solved
  • Priority: Medium
  • Security: Public
  • Views: 225
  • Last Modified:

Conditional statement question

I have a scrolling image which needs to be smaller for iPhone.  Here is the code:
<ul id=scroller>
if ((navigator.userAgent.indexOf('iPhone') != -1)) {
document.write('<li><img src="images/1.jpg" Alt="" ></li>');
} else
{document.write('<li><img src="images/2.jpg" Alt="" ></li>');
}
</ul>

If I insert <script type="text/javascript"> above the opening <ul> tag, and </script> before the closing </ul>, then the image doesn't scroll.  If I insert it after the opening <ul> tag, I get an error that <ul> cannot contain a script tag.  If I leave it out, the page scrolls, but the same image is loaded, regardless of the user agent.  Please advise.
0
ddantes
Asked:
ddantes
1 Solution
 
Frosty555Commented:
Try something like this:

<ul id=scroller>
     <li><img id="image1" src="about:blank" Alt="" /></li>
</ul>

<script>
if ((navigator.userAgent.indexOf('iPhone') != -1)) {
    document.getElementById("image1").src="images/1.jpg";
} else {
    document.getElementById("image1").src="images/2.jpg";
}
</script>

Open in new window


Basically, you don't use Javascript to actually write the HTML itself. Instead, you use Javascript to programatically change the value of the "src" attribute.

The script could go directly inline on the page, or it could go into your in <head> tag in an onload event.
0
 
ddantesAuthor Commented:
Thank you, that really helped.
0
Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.

Join & Write a Comment

Featured Post

What Kind of Coding Program is Right for You?

There are many ways to learn to code these days. From coding bootcamps like Flatiron School to online courses to totally free beginner resources. The best way to learn to code depends on many factors, but the most important one is you. See what course is best for you.

Tackle projects and never again get stuck behind a technical roadblock.
Join Now