IE and Netscape Difference: ASP/JavaScript Problem

JJ_377

Why won't Netscape do the intended in the following? IE is able to
render this page as intended. It is is a "self-posting" ASP form with a
JavaScript validation function: if the form fails the JavaScript
validation function, then the form should not post and an alert should
be issued as indicated below.

The *first* alert in the Validate function works in NS, but the rest of
the code does not and therefore I wonder about the way I am referencing
the controls...trie d to experiment with this, as can be seen in the
rem'd out code. Tried to research in my books...

Thanks for any and all! Jules

---------------------------------------------------------------------------------------------------------------
<%Option Explicit%>

<%
'This is a self-posting form: the same form is used for both
'the request and response objects

If not IsEmpty(request .Form("txtFirst Name")) and _
Not IsEmpty(Request .Form("txtLastN ame")) then
'the form has been filled out and a brief thank you is sent
%>
<html>
<head>
<title>Thank You</title>

</head>

<body>
Thank you
<br><%=Request. Form("txtFirstN ame")%>&nbsp<%= Request.Form("t xtLastName")%>
for your information.
Have a nice day!
</body>
</html>

<%Else%>


<html>
<head>
<script language="javas cript">

function trim(strField){
alert("trim");
return strField.replac e(/^\s+/,'').replace(/\s+$/,'')
}

function validate()
{
alert("validate ");

//if(document.all .txtFirstName.v alue == "" ||
document.all.tx tLastName.value == "")
if(trim(documen t.forms("frmInf o").elements("t xtFirstName").v alue) ==
"" || trim(document.f orms("frmInfo") .elements("txtL astName").value ) ==
"")
//document.swOrde r.elements[0].value
//if(trim(documen t.frmInfo.eleme nts[0].value == "" ||
trim(document.f rmInfo.elements[1].value) == "")
{
document.frmInf o.reset();
alert("Please enter both first and last names.");
return false;
}
document.frmInf o.submit();
return true;
}
</script>
<title>Thank You</title>
</head>
<body>
Please fill out this form:
<form name="frmInfo" action="AllCont rols.asp" method="post">

First Name: <input type="text" name="txtFirstN ame"><br>
Last Name: <input type="text" name="txtLastNa me"><br>
<input type="Button" value="Submit User Info" onclick="valida te()">
<input type="reset">

</form>
</body>
</html>
<%End if %>

Jul 23 '05 #1

Subscribe Reply

1687

Richard Cornford

JJ****@hotmail. com wrote:
<snip>

The *first* alert in the Validate function works in NS,
but the rest of the code does not and therefore I wonder
about the way I am referencing the controls... <snip>

Why wonder, Netscape/Gecko browsers provide very explicit error reports
in their javascript console?

<script language="javas cript">

The language attribute is deprecated and the type attribute is required
in valid HTML 4. So:-

<script type="text/javascript">

<snip> document.all.tx tLastName.value == "")
Only the very latest Mozilla/Gecko browsers support - document.all - so
that does not include any Netscape releases.
if(trim(documen t.forms("frmInf o").
The - document.forms - collection is (W3C) specified as an object not a
function. As such its members should be referenced using bracket
notation.
elements("txtF irstName").valu e) ==

<snip>

The - elements - collection of form elements is (W3C) specified as an
object not a function. As such its members should be referenced using
bracket notation.

Netscape browsers will not have made it past those two errors.

Richard.

Jul 23 '05 #2

RobG

Richard Cornford wrote:

JJ****@hotmail. com wrote: <snip>
document.all. txtLastName.val ue == "")

Only the very latest Mozilla/Gecko browsers support - document.all - so
that does not include any Netscape releases.

IMO, you should say "have limited support for". An informative
discussion on Mozilla/Geko support for document.all is here:

<URL:https://bugzilla.mozill a.org/show_bug.cgi?id =248549>

Mozilla/Geko's support for document.all seems limited to the
ability to create a reference to an element and that's it.
--
Rob

Jul 23 '05 #3

JJ_377

I tried the JavaScript Console before posting my initial question and
it returned no messages at all and so I posted my inquiry here. I tried
to change the <script> tag and the script still fails...if the control
references are incorrect, how do I correct them? I tried various ways
of using "bracket notation" as well before posting my first inquiry
(rem'd out code in original posting I believe) and did not get the
script to work. If this line is wrong, how is it to be changed to to
bracket notation so that it works in NS?
if(trim(documen t.forms("frmInf o").elements("t xtFirstName").v alue) ==
"" || trim(document.f orms("frmInfo") .elements("txtL astName").value ) ==
"")
?
Thank you.

Jul 23 '05 #4

JJ_377

Got it!
if(trim(documen t.frmInfo.txtFi rstName.value) == "" ||
trim(document.f rmInfo.txtLastN ame.value) == "")

This works in Netscape and IE.

Jul 23 '05 #5

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