javascript.js

snipit.js

$(document).ready(function(){
	   $(window).bind('scroll', function() {
	   var navHeight = $( window ).height() - 50;
			 if ($(window).scrollTop() > (navHeight)*.75) {
				 $('nav').addClass('fixed').animate ({
					top: "0px",
				}, 400 );
			 }
			 else {
				 $('nav').removeClass('fixed').css ({
					top: "-50px",
				}, 400 );
			 }
		});
	});