jQuery - Smooth Scrolling to Element

jQuery_scrollToElement.js

(function($) {
			$("a[href^='#']")
			.not('[href="#"]')
			.not('[href="#0"]')
			.on('click', function ( event ) {
				 event.preventDefault();
				var $scrollTarget = $( $(this).attr('href') );
				$scrollTarget = $scrollTarget.length ? $scrollTarget : $('[name="' + $(this).attr('href').slice(1) + '"]');
				/* If not found stop execution */
				if ( !$scrollTarget.length ) return;
				scrollToTarget($scrollTarget, 0, -140);
			});
			if ( location.hash.length && $(location.hash).length ) {
				scrollToTarget( $(location.hash), 1000, 0 );
			}
			function scrollToTarget(scrollTarget, delay, offset) {
				$('html,body').not(":animated").delay(delay).animate({
					scrollTop: scrollTarget.offset().top + offset
				}, 400);
			}
		})(jQuery);