We help IT Professionals succeed at work.

Add class on page load

Dada44
Dada44 asked
on
3,174 Views
Last Modified: 2013-11-18
Dear all,

The function changeClass adds the class 'selected' to the  <li> element when the link is clicked.
Now I need the <li> element of Link 1 to have the class 'selected' when the page loads. How can I do that?
An id can be added if needed, I've been trying that way but I cannot make it work :(

Thanks a ton in advance!
<script>
var thename; 
function changeClass(obj){
 if (thename) thename.className='';
 obj.className='selected';
 thename=obj; 
}
</script>
<li><strong><a href="#" onclick="changeClass(this.parentNode.parentNode);return false;">Link 1</a></strong></li>
<li><strong><a href="#" onclick="changeClass(this.parentNode.parentNode);return false;">Link 2</a></strong></li>
<li><strong><a href="#" onclick="changeClass(this.parentNode.parentNode);return false;">Link 3</a></strong></li>

Open in new window

Comment
Watch Question

Top Expert 2009

Commented:
would this help?

<li id="link1"><strong><a href="#" onclick="changeClass(this.parentNode.parentNode);return false;">Link 1</a></strong></li>
<script type="text/javascript">
window.onload= function()
{
documet.getElementById('link1').className='selected';
};
</script>

Open in new window

This one is on us!
(Get your first solution completely free - no credit card required)
UNLOCK SOLUTION
Note that you dont need to put an id on the list items. The only id you need is for the <UL> but presumably you might already have an id on it so no change :-)
use this code  it will change when page is loaded...
<html>
<head>
<style type="text/css">
	.selected{
		FONT-SIZE: 20px;
	}
</style>
<script type="text/javascript"> 
function changeClass(){
 
 var arr = document.getElementsByTagName("li");
 for(var i = 0; i < arr.length; i++)
	arr[i].className='selected';
}
</script>
</head>
<body onload = "changeClass()">
<li><strong><a href="#">Link 1</a></strong></li>
<li><strong><a href="#">Link 2</a></strong></li>
<li><strong><a href="#">Link 3</a></strong></li>
</body>
</html>

Open in new window

Manjuna, for your future reference :-) ,

It is reccommended NOT to use the onload event in the body tag, instead use window.onload in a script
Also, your code will set every LI in the page to have the class selected :-)

Andone :-)
thank for ur advice "andoneknight:"....

Author

Commented:
thanks!!

Gain unlimited access to on-demand training courses with an Experts Exchange subscription.

Get Access
Why Experts Exchange?

Experts Exchange always has the answer, or at the least points me in the correct direction! It is like having another employee that is extremely experienced.

Jim Murphy
Programmer at Smart IT Solutions

When asked, what has been your best career decision?

Deciding to stick with EE.

Mohamed Asif
Technical Department Head

Being involved with EE helped me to grow personally and professionally.

Carl Webster
CTP, Sr Infrastructure Consultant
Empower Your Career
Did You Know?

We've partnered with two important charities to provide clean water and computer science education to those who need it most. READ MORE

Ask ANY Question

Connect with Certified Experts to gain insight and support on specific technology challenges including:

  • Troubleshooting
  • Research
  • Professional Opinions
Unlock the solution to this question.
Join our community and discover your potential

Experts Exchange is the only place where you can interact directly with leading experts in the technology field. Become a member today and access the collective knowledge of thousands of technology experts.

*This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

OR

Please enter a first name

Please enter a last name

8+ characters (letters, numbers, and a symbol)

By clicking, you agree to the Terms of Use and Privacy Policy.