$("#myCat").change (function () {
	  $.ajax({
		  url: "/includes/fastSubMenu.asp?myCat=" + document.getElementById('myCat').options[document.getElementById('myCat').selectedIndex].value,
		  success: function(msg) {
			 
			 $("#subMenuBox").slideUp(300);
			 $("#subMenuBox").html (msg);
			 $("#subMenuBox").slideDown(300);
		  }
	  });
  });