Textarea to contain only alphabets!

[saravanataee]

Dear all,

I have having a text area field which has a limit of 100 characters only. Now, i also want to validate it such that it should only contain letter's (alphabet A-Z .a-z). It should not contain any number or @ symbol. If such things entered it should throw me an error saying invalid arguments like that.

 

I know it can be done with regular expressions. But i m not aware of how to do.

 

Can some one help with that.

 

Here is my script.

<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>
<tr>
<td valign="top" align="left">Description</td>
<td valign="top">:</td>
<td align="left"><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></td>
</tr>

[greenbman]

I believe this needs to be posted in a Javascript help section and not in PHP. I see no PHP

 

greenbman