<!-- Html -->

	<ul class="standard-nav ">
		<li>
			<a data-number="1" class="scroll">О нас</a>
		</li>
		<li>
			<a data-number="2" class="scroll">Портфолио</a>
		</li>
	</ul>


	<section data-scroll="1" class="lorem1">Lorem ipsum dolor sit amet consectetur adipisicing elit. Fugit, cupiditate!</section>

	<section data-scroll="2" class="lorem2">Lorem ipsum dolor sit amet consectetur adipisicing elit. Fugit, cupiditate!</section>

	<!-- Js -->


<script>
	$('.standard-nav li a').click(function(){
	var dataNum = '[data-scroll='+$(this).attr("data-number")+']';
	scrollMenu(dataNum);
 });

	function scrollMenu (name) {
	 var position = $(name).offset();
	$("html,body").stop().animate({scrollTop:position.top}, 'slow', 'swing');
}
</script>