// tooltips

$('a[rel=tooltip]').tooltip({
	'placement': 'bottom'
});

// recent news

function parseRSS(url, callback) {
  $.ajax({
    url: 'http://ajax.googleapis.com/ajax/services/feed/load?v=1.0&num=10&callback=?&q=' + encodeURIComponent(url),
    dataType: 'json',
    success: function(data) {
      callback(data.responseData.feed);
    }
  });
}

// smooth scroll

$(document).ready(function() {
  function filterPath(string) {
  return string
    .replace(/^\//,'')
    .replace(/(index|default).[a-zA-Z]{3,4}$/,'')
    .replace(/\/$/,'');
  }
  var locationPath = filterPath(location.pathname);
  var scrollElem = scrollableElement('html', 'body');
 
  $('a[href^=#]').each(function() {
    var thisPath = filterPath(this.pathname) || locationPath;
    if (  locationPath == thisPath
    && (location.hostname == this.hostname || !this.hostname)
    && this.hash.replace(/#/,'') ) {
      var $target = $(this.hash), target = this.hash;
      if (target) {
        var targetOffset = $target.offset().top;
        $(this).click(function(event) {
          event.preventDefault();
          $(scrollElem).animate({scrollTop: targetOffset}, 400, function() {
            location.hash = target;
          });
        });
      }
    }
  });
 
  // use the first element that is "scrollable"
  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 [];
  }
 
});

// subnav

(function ($) {

	$(function(){

		// fix sub nav on scroll
		var $win = $(window),
				$body = $('body'),
				$nav = $('.subnav'),
				navHeight = $('.navbar').first().height(),
				subnavHeight = $('.subnav').first().height(),
				subnavTop = $('.subnav').length && $('.subnav').offset().top - navHeight,
				marginTop = parseInt($body.css('margin-top'), 10);
				isFixed = 0;

		processScroll();

		$win.on('scroll', processScroll);

		function processScroll() {
			var i, scrollTop = $win.scrollTop();

			if (scrollTop >= subnavTop && !isFixed) {
				isFixed = 1;
				$nav.addClass('subnav-fixed');
				$body.css('margin-top', marginTop + subnavHeight + 'px');
			} else if (scrollTop <= subnavTop && isFixed) {
				isFixed = 0;
				$nav.removeClass('subnav-fixed');
				$body.css('margin-top', marginTop + 'px');
			}
		}

	});

})(window.jQuery);