// 'Back to Top' button follow scroll
var topYloc = 70;

$(window).scroll(function () { 
	var scrollTop = $(document).scrollTop();
	scrollTop = parseInt(scrollTop);
	
	var offset = topYloc+scrollTop+"px";  
	$("#toplink").animate({top:offset},{duration:500,queue:false});
});


// Smooth Scrolling
$(function() {
			function filterPath(string) {
					return string
					.replace(/^\//,'')
					.replace(/(index|default).[a-zA-Z]{3,4}$/,'')
					.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}, 400, 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 [];
			}
        
        });