What is the meaning - Error variable not defined?

**janren** · 09-07-2005 02:13 AM

Hi,

When I try this script I get an error saying that the variable is not defined. Can someone explain what is wrong?

<HTML>
<HEAD><TITLE>New Page 2</TITLE>
<META http-equiv=Content-Type content="text/html; charset=windows-1252">
<META content="Microsoft FrontPage 4.0" name=GENERATOR>
<META content=FrontPage.Editor.Document name=ProgId>
<SCRIPT language=JavaScript>

</SCRIPT>
</HEAD>

<BODY>
<form>
<input type='button' name='button1' value='English' onClick='javascript:changeValue(english)'>
<input type='button' name='button2' value='German' onClick='javascript:changeValue(german)'>
</form>

<SCRIPT language="JavaScript">

</SCRIPT>

</BODY>
</HTML>

**pixelDepth** · 09-07-2005 02:38 AM

To me it looks like these 2 lines...

<input type='button' name='button1' value='English' onClick='javascript:changeValue(english)'>
<input type='button' name='button2' value='German' onClick='javascript:changeValue(german)'>

You need to pass them back to the changeValue function as a string, otherwise javascript thinks you are passing variables.

changeValue("english")

**BigMoosie** · 09-07-2005 02:38 AM

You did not put quotes (") around english and german so javaScript was expecting to find variables named so, is this what you are trying to do?

Also, in event handlers javascript: protocol is redundant.

Code:

<HTML>
<HEAD><TITLE>New Page 2</TITLE>
<META http-equiv=Content-Type content="text/html; charset=windows-1252">
<META content="Microsoft FrontPage 4.0" name=GENERATOR>
<META content=FrontPage.Editor.Document name=ProgId>
<SCRIPT language=JavaScript>
<!-- Alternative selection
function changeValue(newValue)
{
	document.getElementById("out").innerHTML = newValue;
}
-->
</SCRIPT>
</HEAD>

<BODY>
<form>
<input type='button' name='button1' value='English' onClick='changeValue("english")'>
<input type='button' name='button2' value='German' onClick='changeValue("german")'>
</form>

<br>Choice is <SPAN id="out"></SPAN>.

</BODY>
</HTML>

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