JS for controlling chars input in a text area

**kashaziz** · Mar 29, 2001 06:20

I require java script to check characters typed including white spaces in a text area. I am using the form in a cold fusion file. I have tried a function that checks onsubmit of the form but is not working. Please help

kashaziz@yahoo.com

**Kyuss** · Mar 29, 2001 12:54

do you mean a common validation method?

ie

Code:

<script language="javascript">

function checkdis(){
  if (document.formName.fieldName.value.indexOf(" ")!=-1){

       alert("Sorry, you have a space.");
       document.formName.fieldName.focus();return false
  } 	
}

</script>

then in your form:

Code:

<form name="formName" onSubmit="return checkdis()";>
  <input type="text" name="fieldName"><br>
  <input type="submit" name="submit">
</form>

**kashaziz** · Mar 29, 2001 13:29

I have used a mehtod like that but its not working

**scrubz** · Mar 29, 2001 21:54

OK, what isn't working? And what exactly are you checking for? More details would be helpful. Help us help you.

**kashaziz** · Mar 29, 2001 22:22

here is the code:

<html>
<head>
<SCRIPT LANGUAGE="JavaScript">





</script>

</head>
<body>
<cfif isdefined("form.jobobj") and form.jobobj is not "">
<cfoutput>#form.jobobj# <br></cfoutput>
<cfelse>
<form action="test.cfm" method="post" onsubmit="return checkchars(this)">
<textarea name="jobobj" wrap="ON" cols="50" rows="5" wrap="virtual" ></textarea>
<input type="submit" name="submit" value="submit">
</form>
</cfif>
</body>
</html>

**scrubz** · Mar 29, 2001 23:33

Change the name of the parameter that your function is using (form) to frm, or something else.

function checkchars(frm) {
var max=15;
if (frm.chars.value.length > max) {
alert("Please do not enter more than 15 characters. Please shorten your entry and submit again.");
return false;
}
else return true;
}

And although it works without it, I'd give your form a name in the form tag.

<form name="myForm" action="test.cfm" method="post" onsubmit="return checkchars(this)">

**kashaziz** · Mar 29, 2001 23:38

still its not working

**Kyuss** · Mar 30, 2001 02:34

<SCRIPT LANGUAGE="JavaScript">





</script>

</head>
<body>
<cfif isdefined("form.jobobj") and form.jobobj is not "">
<cfoutput>#formName.jobobj# <br></cfoutput>
<cfelse>
<form name="formName" onsubmit="return checkchars(this)">
<textarea name="jobobj" wrap="ON" cols="50" rows="5" wrap="virtual" ></textarea>
<input type="submit" name="submit" value="submit">
</form>
</cfif>
</body>
</html>

**Kyuss** · Mar 30, 2001 02:35

the javascript should now work anyway

**kashaziz** · Mar 30, 2001 02:56

thanks its working

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