Javascript Function with Form Input

[CrimsonDiva]

Hello,

I'm trying to create a reusable Javascript function (used with ASP) that will take in a textarea and set a cook with the value of that textarea. my function works fine if i dont pass any parameters, but when i try to pass in the name of the form field, it doesn't work. I believe my problem has something to do with objects, but I can't seem to figure it out. Here's some of my code:

JAVASCRIPT
function OpenPreviewWindow(fld){
var theform = document.frmCreate;
var thefield = theform.fld; <== Not working
var now = new Date
strMessage = escape(document.frmRegister.signature.value);
document.cookie = &quot;Signature=&quot; + strMessage;
openWin('newwindow.asp')...
}

ASP
<FORM NAME=&quot;frmCreate&quot;...>
<A HREF=&quot;javascript: OpenPreviewWindow('openingblurb');&quot;>PreView Intro</A>
<TEXTAREA NAME=&quot;openingblurb&quot; ID=&quot;openingblurb&quot;...>

Please help!
Thanks,
Diva

 

[chmohan]

tried document.frmCreate.fld.value ?

 

[CrimsonDiva]

oops. noticed a bug in my code print out. it should say this for the javascript:


JAVASCRIPT

function OpenPreviewWindow(fld){
var theform = document.frmCreate;
var thefield = theform.fld; <== Not working
var now = new Date
strMessage = escape(thefield.value);
document.cookie = &quot;Signature=&quot; + strMessage;
openWin('newwindow.asp')...
}

 

[chmohan]

can you do one thing check if theform!=null?

 

[chmohan]

an example

<SCRIPT LANGUAGE=&quot;JScript&quot;>

function CheckNumber()
{
if (isNumeric(document.UserForm.AcctNo.value))
return true
else
{
alert(&quot;Please enter a valid account number.&quot
return false
}
}

//Function for determining if form value is a number.
//Note: The JScript isNaN method is a more elegant way to determine whether
//a value is not a number. However, some older browsers do not support this method.
function isNumeric(str)
{
for (var i=0; i < str.length; i++)
{
var ch = str.substring(i, i+1)
if( ch < &quot;0&quot; || ch>&quot;9&quot; || str.length == null)
{
return false
}
}
return true
}
</SCRIPT>