supposed to be so simple... - why it's not working as expected ?

abs

Piece of code:

<html>
<head>
</head>
<body>

<script type="text/javascript">
function check()
{
if(document.getElementById('radioA').checked == true)
{
alert('A has just been clicked')
}

if(document.getElementById('radioB').checked == true)
{
alert('B has just been clicked')
}
}
</script>

<form>
<input id="radioA" type="radio" name="test" value="valA"
onfocus="check()">A<br />
<input id="radioB" type="radio" name="test" value="valB" onfocus="check()">B
</form>

</body>
</html>

How to prevent displaying 'A has just been clicked' after clicking the 'B'
radio ? What's wrong with it ?

Thanks for help,
ABS

Nov 28 '05 #1

Subscribe Post Reply

1079

abs wrote:

How to prevent displaying 'A has just been clicked' after clicking the 'B'
radio ? What's wrong with it ?

<html>
<head>
<title>TMP</title>
<meta http-equiv="Content-Type"
content="text/html; charset=iso-8859-1">

<script type="text/javascript">
function report(who) {
alert(who.id + " just been clicked!");
}
</script>

<form>
<input id="radioA" type="radio" name="test" value="valA"
onclick="report(this)">A
<br>
<input id="radioB" type="radio" name="test" value="valB"
onclick="report(this)">B
</form>
</body>
</html>

;-)

Nov 28 '05 #2

Randy Webb

abs said the following on 11/28/2005 12:48 PM:

Piece of code:

<html>
<head>
</head>
<body>

<script type="text/javascript">
function check()
{
if(document.getElementById('radioA').checked == true)
{
alert('A has just been clicked')
}

if(document.getElementById('radioB').checked == true)
{
alert('B has just been clicked')
}
Why are you using gEBI and ID's to access form elements? Use the forms
collection.
Also, there is no need to compare to true, formElement.checked with a
radio button returns true or false (Boolean).

And getting a reference to a Radio Button is not as simple as specifying
its name or ID. Read the FAQ and its Notes, it is covered there in depth.
How to prevent displaying 'A has just been clicked' after clicking the 'B'
radio ? What's wrong with it ?

Bad coding?? <shrug>

--
Randy
comp.lang.javascript FAQ - http://jibbering.com/faq & newsgroup weekly
Javascript Best Practices - http://www.JavascriptToolbox.com/bestpractices/

Nov 28 '05 #3

abs

VK wrote:

<script type="text/javascript">
function report(who) {
alert(who.id + " just been clicked!");

Smart :) But that's not that what I mean. It's a part of a bigger task and
it was just an example :)

Thanks,
ABS

Nov 28 '05 #4

abs

Randy Webb wrote:
[...]

And getting a reference to a Radio Button is not as simple as
specifying its name or ID. Read the FAQ and its Notes, it is covered
there in depth.

Thanks. I think i just got it from FAQ.

Regards,
ABS

Nov 28 '05 #5

abs

Lee wrote:

The problem is your choice if event handlers. You can't be sure when
onfocus is going to fire. Use "onclick", instead. [...]

Sometimes people do not use mouse to select the form's element. What if
someone uses keyboard to change the radio ?

Regards,
ABS

Nov 28 '05 #6

abs

Lee wrote:

The onclick event still fires if they use the keyboard.

I didn't know... must check it.

Thanks,
ABS

Nov 28 '05 #7

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