Bind smooth scroll event to links

ScrollTo

// Setup scrollto links
$('.scrollto').on('click', function(e) {
	var targetElement = $('#' + $(this).attr('href').substring(1));
	if (targetElement.length >= 1) {
		var target = targetElement.offset().top,
			scrollSpeed = function() { return Math.ceil( Math.abs( target - $w.scrollTop() ) / 1.5 ); };
		$('html, body').animate({
			scrollTop: target
		}, scrollSpeed() );
	}
	e.preventDefault();
});