Error: $ not defined

Error: $ not defined

Hi,

Just downloaded jq & jqui - previously used YUI to make stuff draggable - thought I'd give jq a go  ...


So I downloaded jquery1.4.2 & jqueryui1.8.3

got a problem with draggable, keep getting the following error in FF Error Console:<script language="javascript" type="text/javascript" src="/jscript/jquery.js" ></script>
<script language="javascript" type="text/javascript" src="/jscript/jqueryui.js" ></script>

<script type="text/javascript">
    $(document).ready(function()
        {
            $("#WrkThingDiv").draggable();
        }
    );
    </script>

html:
<div id="WrkThingDiv" name=WrkThingDiv></div>

Anyone help?