Question

Possible Duplicate:
limit number of characters entered in textarea

How can I set a limit on the number of characters possible to go into a textarea? I have a textarea that you can put max 50 characters into it. How can i make this with Javascript. I want that the enters are also characters so people wont put lots of enters.

Answer 1

try this:

<script language="javascript" type="text/javascript">
function imposeMaxLength(Object, MaxLen)
{
  return (Object.value.length <= MaxLen);
}
</script> 

<textarea name="myName" onkeypress="return imposeMaxLength(this, 15);" ><textarea>

or

<script language="javascript" type="text/javascript">
function limitText(limitField, limitCount, limitNum) {
    if (limitField.value.length > limitNum) {
        limitField.value = limitField.value.substring(0, limitNum);
    } else {
        limitCount.value = limitNum - limitField.value.length;
    }
}
</script>

<form name="myform">
    <textarea name="limitedtextarea" onKeyDown="limitText(this.form.limitedtextarea,this.form.countdown,100);" 
onKeyUp="limitText(this.form.limitedtextarea,this.form.countdown,100);">
    </textarea><br>
    <font size="1">(Maximum characters: 100)<br>
    You have <input readonly type="text" name="countdown" size="3" value="100"> characters left.</font>
</form>