<script src='<% =ResolveUrl("~/JavaScript/jquery-1.8.0.js")%>' type="text/javascript"></script>
<script type="text/javascript">
var baseUrl = '<%= ResolveUrl("~/") %>';
function ResolveUrl(url) {
if (url.indexOf("~/") == 0) {
url = baseUrl + url.substring(2);
}
return url;
}
</script>
the JQuery is working fine.