I can't solve this problem where the console gives this error: Uncaught TypeError: $ is not a function. This is the code it points to:

<script type=text/javascript>

$(document).ready(function() {

    $(.linky).click(function(){

        var t = $(this); //<-ERROR POINTS HERE

        var y = $(#0+t.attr(id)).offset().top;

        $('html,body').animate({scrollTop: y},500);

    });

});

</script>

Any help would be much appreciated!