Code not working

Michael_jd · Oct 4, 2004

Some code I wrote is not working. Here it is:

<html>
<head>
<title>ex 5</title>

<script language="javascript">

function Average()
{
num_ein=window.document.Average.num1.value;
num_zwei=window.document.Average.num2.value;
num_drei=window.document.Average.num3.value;

alert(num_ein+num_zwei+num_drei);
}

</script>

</head>

<body>

<form name="Average">
<input type="text" name="num1"><br>
<input type="text" name="num2"><br>
<input type="text" name="num3"><br>
<input type="button" name="button1" value="Click for
Average" onClick=Average()>
</form>

</body>
</html>

Internet Explorer says that the button object does not support the property or
method. Please help.

Lee · Oct 4, 2004

Michael_jd said:

Some code I wrote is not working. Here it is:

<html>
<head>
<title>ex 5</title>

<script language="javascript">

function Average()
{
num_ein=window.document.Average.num1.value;
num_zwei=window.document.Average.num2.value;
num_drei=window.document.Average.num3.value;

alert(num_ein+num_zwei+num_drei);
}

</script>

</head>

<body>

<form name="Average">
<input type="text" name="num1"><br>
<input type="text" name="num2"><br>
<input type="text" name="num3"><br>
<input type="button" name="button1" value="Click for
Average" onClick=Average()>
</form>

</body>
</html>

Internet Explorer says that the button object does not support the property or
method. Please help.

1. Don't give a form and a function the same name. They share name space.
2. It's good practice to quote the value of the HTML onclick attribute.
3. The "language" attribute of the <script> tag is deprecated.
It's better to use: <script type="text/javascript">
4. Once you get to the point that your function is working, you'll find
that your alert is displaying the three string values concatinated,
rather than converted to numbers and summed. This link should help
you with that problem:

http://www.jibbering.com/faq/#FAQ4_21

Randy Webb · Oct 4, 2004

Michael_jd said:
Some code I wrote is not working. Here it is:

function Average()

<form name="Average">

Internet Explorer says that the button object does not support the property or
method. Please help.

Rename the form or rename your function.

Michael Winter · Oct 4, 2004

Michael_jd said:
[snip]

<input type="button" name="button1" value="Click for Average"
onClick=Average()>

Click to expand...

[snip]

2. It's good practice to quote the value of the HTML onclick attribute.

In this particular instance, it's mandatory. Parentheses cannot appear in
attribute values without quotation marks.

[snip]

Mike

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Code not working

Michael_jd

Lee

Randy Webb

Michael Winter

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