Solved

JavaScript conditional checkboxes

Posted on 2011-03-22
4
186 Views
Last Modified: 2012-05-11
I have the following code attached. It is almost perfect, however, I get some incorrect value.
If I click on Video only, it is fine. If I then click on Email as well, it is fine. If I then click off of video, I get an incorrect value (I get Nothing).

If I click off both values, it is correct. If I click on Email, it is correct, If I click on Video as well, it is correct. If I click off of email, I get an incorrect value (I get Nothing).

I am testing this via an alert.
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Untitled Document</title>
<script>
function $(id) { return document.getElementById(id); }
</script>
</head>
<body>
<form action="" method="get">

<legend>Button Names:</legend>

<input id="checkboxA" type="checkbox" value="ChoiceA" onclick="if(this.checked && $('checkboxB').checked) $('button').name='Both';else if(this.checked) $('button').name='Video';else if($('checkboxA').checked)$('button').name='Video';else $('button').name='Nothing'" />
<label for="checkboxA">Video</label>
<br />
<input id="checkboxB" type="checkbox" value="ChoiceB" onclick="if(this.checked && $('checkboxA').checked) $('button').name='Both';else if(this.checked) $('button').name='Email';else if($('checkboxB').checked)$('button').name='Email';else  $('button').name='Nothing'" />
<label for="checkboxB">Email</label>
<br />

<input type="button" value="Original button text" id="button" name="Nothing" onclick="alert($('button').name)">

<br />
</form>
</body>
</html>

Open in new window

0
Comment
Question by:msukow
  • 2
  • 2
4 Comments
 
LVL 4

Expert Comment

by:GeoffHarper
ID: 35191255
Change lines 15 & 18.

Switch the id names: 'checkboxA' and 'checkboxB'

See below...

 
<input id="checkboxA" type="checkbox" value="ChoiceA" onclick="if(this.checked && $('checkboxB').checked) $('button').name='Both';else if(this.checked) $('button').name='Video';else if($('checkboxB').checked)$('button').name='Video';else $('button').name='Nothing'" />

<input id="checkboxB" type="checkbox" value="ChoiceB" onclick="if(this.checked && $('checkboxA').checked) $('button').name='Both';else if(this.checked) $('button').name='Email';else if($('checkboxA').checked)$('button').name='Email';else  $('button').name='Nothing'" />

Open in new window

0
 
LVL 82

Expert Comment

by:leakim971
ID: 35191275
check the last test :
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Untitled Document</title>
<script>
function $(id) { return document.getElementById(id); }
</script>
</head>
<body>
<form action="" method="get">

<legend>Button Names:</legend>

<input id="checkboxA" type="checkbox" value="ChoiceA" onclick="if(this.checked && $('checkboxB').checked) $('button').name='Both';else if(this.checked) $('button').name='Video';else if($('checkboxB').checked)$('button').name='Email';else $('button').name='Nothing'" />
<label for="checkboxA">Video</label>
<br />
<input id="checkboxB" type="checkbox" value="ChoiceB" onclick="if(this.checked && $('checkboxA').checked) $('button').name='Both';else if(this.checked) $('button').name='Email';else if($('checkboxA').checked)$('button').name='Video';else  $('button').name='Nothing'" />
<label for="checkboxB">Email</label>
<br />

<input type="button" value="Original button text" id="button" name="Nothing" onclick="alert($('button').name)">

<br />
</form>
</body>
</html>

Open in new window

0
 
LVL 82

Accepted Solution

by:
leakim971 earned 250 total points
ID: 35191293
>Switch the id names: 'checkboxA' and 'checkboxB'

the new name too :
.name='Video' -> .name='Email'
.name='Email' -> .name='Video'
0
 
LVL 4

Assisted Solution

by:GeoffHarper
GeoffHarper earned 250 total points
ID: 35191313
Sorry, also switch the trace values...


<input id="checkboxA" type="checkbox" value="ChoiceA" onclick="if(this.checked && $('checkboxB').checked) $('button').name='Both';else if(this.checked) $('button').name='Video';else if($('checkboxB').checked)$('button').name='Email';else $('button').name='Nothing'" />

<input id="checkboxB" type="checkbox" value="ChoiceB" onclick="if(this.checked && $('checkboxA').checked) $('button').name='Both';else if(this.checked) $('button').name='Email';else if($('checkboxA').checked)$('button').name='Video';else  $('button').name='Nothing'" />

Open in new window

0

Featured Post

3 Use Cases for Connected Systems

Our Dev teams are like yours. They’re continually cranking out code for new features/bugs fixes, testing, deploying, testing some more, responding to production monitoring events and more. It’s complex. So, we thought you’d like to see what’s working for us.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

In Part 1 (http://www.experts-exchange.com/Programming/Languages/Scripting/JavaScript/A_7849-Hex-Maze.html) we covered the hexagonal maze basics -- how the cells are represented in a JavaScript array and how the maze is displayed.  In this part, we'…
This article will show, step by step, how to integrate R code into a R Sweave document
Learn how to match and substitute tagged data using PHP regular expressions. Demonstrated on Windows 7, but also applies to other operating systems. Demonstrated technique applies to PHP (all versions) and Firefox, but very similar techniques will w…
The viewer will learn how to create a basic form using some HTML5 and PHP for later processing. Set up your basic HTML file. Open your form tag and set the method and action attributes.: (CODE) Set up your first few inputs one for the name and …

895 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

21 Experts available now in Live!

Get 1:1 Help Now