$(document).ready(function() {
  function filterPath(string) {
	return string
	  .replace(/^\//,'')
	  .replace(/(index|default).[a-zA-Z]{3,4}$/,'')
	  .replace(/\/$/,'');
  }
  $('a[href*=#]').each(function() {
	if ( filterPath(location.pathname) == filterPath(this.pathname)
	&& location.hostname == this.hostname
	&& this.hash.replace(/#/,'') ) {
	  var $targetId = $(this.hash), $targetAnchor = $('[name=' + this.hash.slice(1) +']');
	  var $target = $targetId.length ? $targetId : $targetAnchor.length ? $targetAnchor : false;
	   if ($target) {
		 var targetOffset = $target.offset().top;
		 $(this).click(function() {
		   $('html, body').animate({scrollTop: targetOffset}, 500);
		   return false;
		 });
	  }
	}
  });
});