Solved.
Remember to put <!-- --> around script code!
Ex
<
script type="text/javascript">
<!--
$(document).ready(
function() {
$(
".accordion h3:first").addClass("active");
$(
".accordion p:not(:first)").hide();
$(
".accordion h3").click(function() {
$(
this).next("p").slideToggle("fast")
.siblings(
"p:visible").slideUp("fast");
$(
this).toggleClass("active");
$(
this).siblings("h3").removeClass("active");
});
});
-->
</
script>