Javascript and Forms

Mezz · Apr 28, 2002

Hi all, i'm very new to programming and was trying to do a webpage with forms and javascript.

I tried submitting some data to another webpage but with javascript, i can't seem to retreive the data correctly. I always get a error saying data or object is null. I wanted to do this in javascript instead of asp. Pls help.

Page 1 :
<html>
<head>
<title>testingt</title>
<SCRIPT LANGUAGE="Javascript">
</SCRIPT>

</head>

<body bgcolor="#FFFFFF" text="#000000">
<FORM NAME="testing" ACTION="test2.htm" METHOD="POST">
<INPUT TYPE="TEXT" NAME="GYY" VALUE="1234567890">
<INPUT TYPE="submit" value="Send">
</FORM>
</body>

</html>

Page 2:
<html>
<head>
<title>Untitled Document</title>
<SCRIPT LANGUAGE="JAVASCRIPT">
document.write("hhhhhh&quot

;
doh=document.testing.GYY.value
document.write("this is a test"+doh);
</SCRIPT>
</head>

<body bgcolor="#FFFFFF" text="#000000">

</body>
</html>

kasuals · Apr 28, 2002

It all boils down to Parent/Child DOM. Here is what your form looks like to the browser:

Parent: Document
Child: Testing

Parent: Testing
Child: GYY

document->testing->GYY

testing is a child of document. document in this case is page1. Once you changed pages, document becomes page2 to the browser.

Since testing is not a child of page2, GYY cannot be a child of testing.

You will have to parse the contents of the form data separately. You can't call on it as if it exists naturally within the page.

Check out this link:

http://developer.irt.org/script/form.htm

It will explain all the elements of form control with Javascript.

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Javascript and Forms

Mezz

MIS

kasuals

Programmer

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