jquery REGEX validation for letters and Numbers onlyu
<p>Can any body tell me what is the Regex validation to use my textbox should take only letters and Numbers?</p>

<pre><code>  var BLIDRegExpression = /^[a-zA-Z0-9]*$/;

    if (BLIDRegExpression.test(BLIDIdentier)) {
        alert('The BLID Identifier may only consist of letters or numbers and must be exactly five characters long.');
        return false;
    }
</code></pre>

<p>I am using this one but its not working. can anybody tell me.</p>

<p>Thanks</p>
