$(document).ready(function(){  
 
  $(".topnav").hover(function() {
	 $(this).parent().find(".subnav").fadeIn('normal').show(); 
	 $(this).parent().hover(function() {  
	 }, function(){  
		$(this).parent().find(".subnav").fadeOut('slow'); 
	 });  
  });  
  $('#back-top').click(function () {
   $('body,html').animate({
        scrollTop: 0
   }, 500);
        return false;
  });
   var jbOffset = $( '#gnb' ).offset();
   $( window ).scroll( function() {
	 if ( $( document ).scrollTop() > jbOffset.top ) {
	$( '#gnb' ).addClass( 'jbFixed' );
	 }
	 else {
	$( '#gnb' ).removeClass( 'jbFixed' );
	 }
   });
} );

 jQuery.fn.anchorAnimate = function(settings) {
      settings = jQuery.extend({
         speed : 700,
		 offset : 227
     }, settings);    
     
     return this.each(function(){
         var caller = this
         $(caller).click(function (event) {    
             event.preventDefault()
             var locationHref = window.location.href
             var elementClick = $(caller).attr("href")
             
             var destination = $(elementClick).offset().top;
             $("html:not(:animated),body:not(:animated)").animate({ scrollTop: destination}, settings.speed, function() {
                 window.location.hash = elementClick
             });
               return false;
         })
     })
 }


function setPage(arg) { //navigation hn:1depth, sn:2depth, cn:3depth 를 받음
	page = jQuery.extend({
		hn : "",
		sn : "",
		cn : ""
	}, arg || {});
	if(window.console) {
		console.log("hn : " + page.hn + "\nsn : " + page.sn + "\ncn : " + page.cn);
	}
	if(page.hn != 11) {
		$("#gnb  ul > li.hn" + page.hn + " a").addClass("on"); //1depth 활성
	}

	if(page.hn >= 12) {
		$("#gnb  ul > li.hn" + page.hn + " a").addClass("on"); //유틸 1depth 활성
	}

	$(".snb ul li.sn" + page.sn).find(" a").addClass("on").end().find("> ul").addClass("on").find("> li.cn" + page.cn + " a").addClass("on"); //2depth 활성
}


$(function() {
	var offset = $("#quick").offset();
	var topPadding = 80;
	$(window).scroll(function() {

		if ($(window).scrollTop() > offset.top) {
			$("#quick").stop().animate({
				marginTop: $(window).scrollTop() - offset.top + topPadding
			}, 500);
		} else {
			$("#quick").stop().animate({
				marginTop: 0
			});
		};
	 });
});