/* http://www.learningjquery.com/2007/09/animated-scrolling-with-jquery-12 */
$(document).ready(function(){
  $('a.back-top').click(function() {
	if (location.pathname.replace(/^\//,'') == this.pathname.replace(/^\//,'')
	&& location.hostname == this.hostname) {
	  var $target = $(this.hash);
	  $target = $target.length && $target
	  || $('[name=' + this.hash.slice(1) +']');
	  if ($target.length) {
		var targetOffset = $target.offset().top;
		$('html,body')
		.animate({scrollTop: targetOffset}, 700);
	   return false;
	  }
	}
  });
});