console log showing greyScale is not a function
<p>I just embedded a script in the head section of my web page, It was not working, so I opened the console and it threw me an error...</p>

<pre><code>$(function() {
     $('.greyScale').hide().fadeIn(1000);
});
$(window).load(function () {
    $('.greyScale').greyScale({
        fadeTime: 500,
        reverse: false
    });
});

Error : TypeError: $(...).greyScale is not a function
[Break On This Error]   
reverse: false
</code></pre>

<p>Any idea how do I solve this?</p>
