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[Javascript] Why is script line needed to change values

  • From: nick at nickfitz.co.uk (Nick Fitzsimons)
  • Subject: [Javascript] Why is script line needed to change values
  • Date: Mon May 21 16:04:56 2007
On 21 May 2007, at 21:45:10, twlewis@xxxxxxxxxxxx wrote:

> I apologize, because this is a little off-topic from javascript.  I  
> had
> completed my javascript, which loads data to a textarea.  It would not
> load the textarea.  I have a VBScript version that worked.  After much
> careful elimination of code on the VBScript version, I found that  
> the line
> that was making the onclick work was the script statement.  I  
> created a
> chopped down version to test and play with.  In the script below, if I
> remove the line
> <script Language="VBScript" src="none"></script>,
> the onclick no longer works.  I can paste it back in, and the button
> changes as it is supposed to.  Can someone please explain this to me?
> Thank you for your patience and explanation.
> Tim
>
>
> <html>
> <head>
> <script Language="VBScript" src="none"></script>
>
> </head><body>
> <form id=myform>
> <input type="button" value="Click me!" id=Button1 name="button">
>
> <input type="button" value="Change button 1 to monkey"
> onclick="Button1.Value='monkey'">
>
> </form>
> </body>
> </html>

The presence of a <script> tag with "language="VBScript" will cause  
Internet Explorer to assume that the onclick="" handler is in  
VBScript. VBScript is case-insensitive, unlike JavaScript, and the  
"value" property starts with a lower-case "v".

So if you remove the <script> tag and use

Button1.value = 'monkey'

(instead of Value) for the onclick attribute then it will work in all  
browsers that support JS, whereas at the moment it will only work in IE.

HTH,

Nick.
-- 
Nick Fitzsimons
http://www.nickfitz.co.uk/