$(document).ready(init);

function init() 
{

	$('#wrapper').hide().delay(300).fadeIn(500,function(){
		setHeader();
		setAnchors();
	});
	
	$('a:not(.scrolllink,[target="_blank"],[href^="mailto"],.phone,.fax)').click(function(e) {
		e.preventDefault();
		var link = this;
		$('#wrapper').fadeOut(250, function() {
			document.location = link.href;							 
		});
	});
	
	$('a.phone,a.fax').click(function(e){
		e.preventDefault();
	});
	
}

function setHeader() {
	
	var header = $('#sub_header');
	var pinTo = header.find('h2');
	
	if (pinTo.length)
	{
		var fixedHeader = header.clone();
		
		fixedHeader
			.attr('id', 'sub_header_fixed')
			.css({
				'display': 'none',
				'position': 'fixed',
				'top': -1 * (header.find('h2').height() + parseInt(header.css('padding-top'))),
				'width': '872px',
				'z-index': 99
			});
			
		header.after(fixedHeader);
		

		
		$(window).data('pinY', pinTo.offset().top + pinTo.height());
		$(window).scroll(onScroll);
	}
	
}

function onScroll(e)
{	
	var header = $('#sub_header');
	var fixedHeader = $('#sub_header_fixed');
	
	if ($(this).scrollTop() >= $(this).data('pinY'))
	{
		header.css('visibility', 'hidden');
		fixedHeader.show();
		$('#top_button').css('display','block');
	}
	else
	{
		header.css('visibility', 'visible');
		fixedHeader.hide();
		$('#top_button').hide();
	}
}
  function filterPath(string) {
  return string
    .replace(/^\//,'')
    .replace(/(index|default).[a-zA-Z]{3,4}$/,'')
    .replace(/\/$/,'');
  }
  
  function setAnchors() {
  	
  	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}, 800, 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 [];
  }
  
  window.addEventListener('unload',quitit,false);
  
  function quitit() {
  	return true;
  }