$(function() {
			
				function filterPath(string) {
					return string
					.replace(/^\//,'')
					.replace(/(index|default).[a-zA-Z]{3,4}$/,'')
					.replace(/\/$/,'');
				}
			
				var locationPath = filterPath(location.pathname);
				var scrollElem = scrollableElement('html', 'body');
			
				// Any links with hash tags in them (can't do ^= because of fully qualified URL potential)
				$('a[href*=#]').each(function() {
			
					// Ensure it's a same-page link
					var thisPath = filterPath(this.pathname) || locationPath;
					if (  locationPath == thisPath
						&& (location.hostname == this.hostname || !this.hostname)
						&& this.hash.replace(/#/,'') ) {
			
							// Ensure target exists
							var $target = $(this.hash), target = this.hash;
							if (target) {
			
								// Find location of target
								var targetOffset = $target.offset().top;
								$(this).click(function(event) {
			
									// Prevent jump-down
									event.preventDefault();
			
									// Animate to target
									$(scrollElem).animate({scrollTop: targetOffset}, 800, function() {
			
										// Set hash in URL after animation successful
										location.hash = target;
			
									});
								});
							}
					}
			
				});
			
				// Use the first element that is "scrollable"  (cross-browser fix?)
				function scrollableElement(els) {
					for (var i = 0, argLength = arguments.length; i <argLength; i++) {
						var el = arguments[i],
						$scrollElement = $(el);
						if ($scrollElement.scrollTop()> 0) {
							return el;
						} else {
							$scrollElement.scrollTop(1);
							var isScrollable = $scrollElement.scrollTop()> 0;
							$scrollElement.scrollTop(0);
							if (isScrollable) {
								return el;
							}
						}
					}
					return [];
				}
			
			});