Solved

How to get value from span element in Firefox?

Posted on 2008-10-24
2
2,402 Views
Last Modified: 2013-12-08
Hi all,

The script below works as expected in IE6 and IE7.  When I try it in FF3, it returns a NaN where IE returns an actual value.  For testing purposes, this script just doubles the selected value in the list and outputs it to a span element.

I've even included an isNaN() test, but it's still not working.

Can anyone make this work in both IE and FF?

Any help much appreciated.

Thank you,

Paul.
<html>

<head>

<script>

function updateprice(labelParam, selectParam, spanParam) { // output area, number selected, item value

// query DOM set for specific elements by ID

var label = document.getElementById(labelParam);

var name = document.getElementById(selectParam).value;

var spanval = parseInt(document.getElementById(spanParam).value);

if (isNaN(name)) { 

	name = "0"; 

	name = parseInt(name); 

	alert("name problem. val: " + name);

}

if (isNaN(spanval)) { 

	spanVal = "0"; 

	spanVal = parseInt(spanVal); 

	alert("spanval problem. val: " + spanVal);

}

var total = parseInt(name)*parseInt(spanval);

msg = "Result: " + total;

label.innerHTML= msg;

}
 
 

</script>
 

<title>Doubler</title>

</head>
 

<body>

<form>

  <p>Doubler:

    <select name="select1" id="select1" onchange="updateprice('output1','select1','item1');">

      <option value="0">0</option>

      <option value="1">1</option>

      <option value="2">2</option>

      <option value="3">3</option>

    </select>

  </p>

</form>
 

<span id="item1" name="item1" value="2"></span><br>

<span id="output1" name="output1"></span><br>

</body>

</html>

Open in new window

0
Comment
Question by:paulc2000
2 Comments
 
LVL 82

Accepted Solution

by:
hielo earned 500 total points
ID: 22797598
var spanval = parseInt(document.getElementById(spanParam).getAttribute("value"));
0
 

Author Comment

by:paulc2000
ID: 22797646
Short and sweet!  It worked, thank you very much!
0

Featured Post

How your wiki can always stay up-to-date

Quip doubles as a “living” wiki and a project management tool that evolves with your organization. As you finish projects in Quip, the work remains, easily accessible to all team members, new and old.
- Increase transparency
- Onboard new hires faster
- Access from mobile/offline

Join & Write a Comment

This article discusses the difference between strict equality operator and equality operator in JavaScript. The Need: Because JavaScript performs an implicit type conversion when performing comparisons, we have to take this into account when wri…
Boost your ability to deliver ambitious and competitive web apps by choosing the right JavaScript framework to best suit your project’s needs.
The viewer will learn the basics of jQuery including how to code hide show and toggles. Reference your jQuery libraries: (CODE) Include your new external js/jQuery file: (CODE) Write your first lines of code to setup your site for jQuery…
Google currently has a new report that is in beta and coming soon to Webmaster Tool accounts. This Micro Tutorial will highlight new features for Google Webmaster Tools.

762 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

22 Experts available now in Live!

Get 1:1 Help Now