$(function() {
	var navArray = new Array('categories', 'degrees');
	
	for(i=0; i<=navArray.length; i++){
		$("#" + navArray[i]).mouseover(function() {
			var $this = $("#" + navArray[i] + " ul");
			$($this).show();
			alert ($this);
		});
		$("#" + navArray[i]).mouseout(function() {
			var $this = $("#" + navArray[i] + " ul");
			$($this).hide();
		});
	}
});