autoChangeDelay = 9; // slide change delay (in seconds)

		$(document).ready(function(){
			$('.hero2').each(function(){
				var $hero = $(this);
				var $slides = $hero.find("div.hero2_slide");
				var $controls = $hero.find("div.hero2_navigation");
				var $slideLinks = $controls.find("a.heroslidelink");

				var index = $slides.filter(".current").index();
				showSlide(index);

				$controls.delegate("a", "click", function(e){
					var $this = $(this);
					var newIndex = $this.hasClass("prev") ? index - 1 :
								   $this.hasClass("next") ? index + 1 :
								   $this.hasClass("heroslidelink") ? $slideLinks.index($this) : -1;

					showSlide( newIndex );
					e.preventDefault();
				});

				/* shows slide with given index */
				var timeout;
				function showSlide(newIndex){
					newIndex = (newIndex < 0) ? $slides.length - 1 : (newIndex >= $slides.length) ? 0 : newIndex;

					if (newIndex != index) {
						index = newIndex;

						$slides.stop(true, true); // stop currently running animations

						$slides.filter(".current").fadeOut(function(){
							$(this).removeClass("current").hide();
						});
						$slides.eq(index).fadeIn(function(){
							$(this).addClass("current");
						});

						$slideLinks.removeClass("current").eq(index).addClass("current");
					}

					// auto change slides
					clearTimeout(timeout);
					if (autoChangeDelay > 0) {
						timeout = setTimeout(function(){
							showSlide(index + 1);
						}, autoChangeDelay * 1000)
					}
				}

			});
		});


$(window).scroll(function () {
    if ($(window).scrollTop() > 150)
			{$('.port_nav').css('position','fixed').css('top','0px')}
    else
			{$('.port_nav').css('position','absolute').css('top','150px')}
})


var _gaq = _gaq || [];
  _gaq.push(['_setAccount', 'UA-106700-4']);
  _gaq.push(['_trackPageview']);

  (function() {
    var ga = document.createElement('script'); ga.type = 'text/javascript'; ga.async = true;
    ga.src = ('https:' == document.location.protocol ? 'https://ssl' : 'http://www') + '.google-analytics.com/ga.js';
    var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(ga, s);
  })();



//CTRL навигация

e2_ctrl_navi = function (event) {
  if (window.event) event = window.event
  var target = event.target ? event.target.tagName : event.srcElement ? event.srcElement.tagName : ''
  //if (/textarea|input/i.test (target)) return
  if (event.ctrlKey) {
    var link = null
    if (37 == event.keyCode) link = document.getElementById ('ctrl_prev')
    if (39 == event.keyCode) link = document.getElementById ('ctrl_next')
    if (link && link.href) location.href = link.href
  }
}

if (document.addEventListener) {
  document.addEventListener ('keyup', e2_ctrl_navi, false)
}
else
if (document.attachEvent) {
  document.attachEvent ('onkeydown', e2_ctrl_navi)
}