Member Sign In
Not a member?

A Wired.com user account lets you create, edit and comment on Webmonkey articles. You will also be able to contribute to the Wired How-To Wiki and comment on news stories at Wired.com.


It's fast and free.

Sign in with OpenID
Sign In
Webmonkey is a property of Wired Digital.
processing...
Join Webmonkey
Please send me occasional e-mail updates about new features and special offers from Wired/Webmonkey.
Yes No
Please send occasional e-mail offers from Wired/Webmonkey affiliated web sites and publications, and carefully selected companies.
Yes No
I understand and agree that registration on or use of this site constitutes agreement to Webmonkey's User Agreement and Privacy Policy.
Webmonkey is a property of Wired Digital.
processing...

Retrieve Sign In

Please enter your e-mail address or username below. Your username and password will be sent to the e-mail address you provided us.

or
Webmonkey is a property of Wired Digital.
processing...

Welcome to Webmonkey

A private profile page has been created for you.
As a member of Webmonkey, you can now:
  • edit articles
  • add to the code library
  • design and write a tutorial
  • comment on any Webmonkey article
Close
Webmonkey is a property of Wired Digital.

Sign In Information Sent

An e-mail has been sent to the e-mail address registered in this account.
If you cannot find it in your in-box, please check your bulk or junk folders.
Sign In
Webmonkey is a property of Wired Digital.

Manipulate HTML Elements With Prototype

/skill level/
/viewed/
0 Times

This code inserts a few elements on the page to select and manipulate certain HTML elements on the page using the Prototype JavaScript framework. This code was written for use in Adam DuVander's Get Started With Prototype tutorial.

Since this code depends on the Prototype JavaScript framework to run, you'll need a copy of the Prototype JavaScript library.

This code is in a wiki. If you have any advances to make to the original tutorial and code, please feel free to contribute.

The Code

<html>
<head>
	<title>Testing Prototype</title>
	<script src="prototype.js"></script>
	<style>
		#container div, #container span
		{
			width: 150px;
			height: 150px;
			display: block;
			float: left;
			border: 1px solid black;
		}
		#container .highlight
		{
			border: 3px solid orange;
		}
		p
		{
			clear: left;
		}
		p input
		{
			display: block;
		}
	</style>
	<script>
	function test_byid()
	{
		$("second").toggleClassName("highlight");
	}
	function test_byclass()
	{
		$$(".test").each(function(elmt) { elmt.toggleClassName("highlight") });
	}
	function test_bytag()
	{
		$$("span").each(function(elmt) { elmt.toggleClassName("highlight") });
	}
	function test_byfirstresult()
	{
		$$("span:first-child").each(function(elmt) { elmt.toggleClassName("highlight") });
	}
	function test_byfunction()
	{
		$$("span:not(#second)").each(function(spanobj) {
		  spanobj.toggleClassName("highlight");
		});
	}
	document.observe('dom:loaded', function() {
		$("myclicker").observe("click", function() { alert('Clicked!'); });
	});
	</script>
</head>
<body>

<div id="container">

<span>SPAN<br />No id</br />No class</span>
<span class="test" id="second">SPAN<br />id="second"</br />class "test"</span>
<div class="test">DIV<br />No id</br />class "test"</div>


</div>

<div id="myclicker">Click me!</div>

<p>
<strong>Toggles:</strong>
<input type="button" onClick="test_byid();" value="id='second'" />
<input type="button" onClick="test_byclass();" value="class='test'" />
<input type="button" onClick="test_bytag();" value="tag is 'span'" />
<input type="button" onClick="test_byfirstresult();" value="the first object where tag is 'span'" />
<input type="button" onClick="test_byfunction();" value="tag is 'span', but id is not 'second'" />
</p>

</body>
</html>

What it Looks Like

Retrieved from "http://www.webmonkey.com/codelibrary/Manipulate_HTML_Elements_With_Prototype"
Edit this article
Reddit Digg
 
Subscribe now

Special Offer For Webmonkey Users

WIRED magazine:
The first word on how technology is changing our world.

Subscribe for just $10 a year