debugging javascript paste

P

Paul Furman

Is there a simple way to test whether an onclick event is working like
make it beep or something to test. I have no clue about javascript only
php and need some help debugging.

thx
 
J

J.O. Aho

Paul said:
Is there a simple way to test whether an onclick event is working like
make it beep or something to test. I have no clue about javascript only
php and need some help debugging.
Click to expand...

<noscript>If you see this, onclick won't work</noscript>

If you want help debugging javascript, you have a good tool in the mozilla
browsers, which gives you error messages and warnings. Look under tools meny
for the submenu "Web Development".
 
P

Paul Furman

Paul said:
Is there a simple way to test whether an onclick event is working like
make it beep or something to test. I have no clue about javascript only
php and need some help debugging.
Click to expand...

Thanks for both replies, I'm working with the mozilla debugger now. I
had since tried in IE & had trouble sending this message to the group
last nigh so I'll send now & keep plugging away at it.

--

Alright so if I look at it in IE I see an error appear when clicking
referring to the line with the first javascript function definition.

Error: Object required


that's the bottom line below:

<head>
<script>
//Thumbnail image viewer- © Dynamic Drive (www.dynamicdrive.com)

//sample useage:
//<IMG src="myimage.jpg"
// onclick="return enlarge('images/myimage.jpg' ,event)"
// border="0" alt="">

var ie=document.all
var ns=document.layers
var ns6=document.getElementById&&!document.all

function enlarge(which,e){ <-this line gives the error

<snip remaining code>

--

Now, unless it's necessary to have the onclick event in front of title,
I checked my syntax and it's identical to the working example I've got
and the url it passes as a value is a valid image url. I tried it with a
relative url and an absolute url and copied out of the view-source it
pastes into the address bar & produces an image. It looks like this as a
relative url:

<img src="03_PBF9672.jpg"
title="03_PBF9672.jpg"
width="640" height="428"
border="0"
onclick="return enlarge('crop/03_PBF9672.jpg' ,event)">

compare to:

//sample useage:
//<IMG src="myimage.jpg"
// onclick="return enlarge('images/myimage.jpg' ,event)"
// border="0" alt="">
 
P

Paul Furman

J.O. Aho said:
<noscript>If you see this, onclick won't work</noscript>

If you want help debugging javascript, you have a good tool in the
mozilla browsers, which gives you error messages and warnings. Look
under tools meny for the submenu "Web Development".
Click to expand...

Solved, thanks, that debugger is handy!
 

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