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Textarea validation

hi,

i have a textarea and i want the user to enter some text if he doesnt enter any text i want to fire an alert

the condition i am checking is in textarea if u press the spacebar it adds spaces i dont want them to add spaces and submit the form

here is my code

Code:



var checkbody=Trim(document.frm1.txtbody.value);



if(checkbody.length < 0)

	{

	alert("enter some text");

	return false;

	}

but the alert is never fired am i using the trim function properly

any ideas

thanks,

todd

Guest

There is no 'Trim()' function in JavaScript, so no, you are not

using it right.

You have to roll your own.

Code:

function trim(s)

{

	return s.replace(/^\s*|\s*$/g,'');

}

Also, you are checking to see if the string has negative length,

you should be checking to see if it has 0 length.

Was this answer helpful ? Yes No

Guest

<Script Language='JavaScript'>
//-- Start to check input data -------------------------

</Script>

<form name="ask" action="ask.php" method="post" onSubmit="return isAskSubmit(this)">
TEXT:<textarea name=message rows=8 cols=50></textarea>
<input type=submit>
</form>

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Charles

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