$(function(){
	fontSizebutton();
	initRollOverImages();
	sideMenuClick();
	borderNone();	
	listCurrent();
})

function backToTop() {
    var x1 = x2 = x3 = 0;
    var y1 = y2 = y3 = 0;

    if (document.documentElement) {
        x1 = document.documentElement.scrollLeft || 0;
        y1 = document.documentElement.scrollTop || 0;
    }

    if (document.body) {
        x2 = document.body.scrollLeft || 0;
        y2 = document.body.scrollTop || 0;
    }

    x3 = window.scrollX || 0;
    y3 = window.scrollY || 0;

    var x = Math.max(x1, Math.max(x2, x3));
    var y = Math.max(y1, Math.max(y2, y3));

    window.scrollTo(Math.floor(x / 2), Math.floor(y / 2));

    if (x > 0 || y > 0) {
        window.setTimeout("backToTop()", 25);
    }
}

function initRollOverImages() {
  var image_cache = new Object();
  $("img.swap").each(function(i) {
    var imgsrc = this.src;
    var dot = this.src.lastIndexOf('.');
    var imgsrc_on = this.src.substr(0, dot) + '_on' + this.src.substr(dot, 4);
    image_cache[this.src] = new Image();
    image_cache[this.src].src = imgsrc_on;
    $(this).hover(
      function() { this.src = imgsrc_on; },
      function() { this.src = imgsrc; });
  });
}

function sideMenuClick(){
	var target = $('#sidemenu h2,#sidemenu li')
	$(target).mouseover(function(){
		$(this).find("span").addClass('clicklist');
	});
	$(target).mouseout(function(){
		$(this).find("span").removeClass('clicklist');
	});
	$(target).click(function(){
		var loc = $(this).find('a').attr('href');
		window.location.href = loc;
	});
}

function borderNone(){
	$("#contents #sidemenu h2:first").css('padding','0 1px 1px 1px');
	$('#contents #sidemenu ul').each(function(){
		$(this).find('li:first').addClass('firstlist');
	});
}

function listCurrent(){
	var pageClass = $("body").attr("class");
	var targetTitle = $('#contents #sidemenu li,#contents #sidemenu h2')

	$(targetTitle).each(function(){
		var currentId = $(this).attr("id"); 
		if( pageClass == currentId ) {
			$(this).addClass("current");
		}
	});
}
function fontSizebutton(){
	
//	$.cookie('fontSize','fontM');
    
	var history = $.cookie('fontSize');
	var elm = $('#wrapper');
	
	if(history==null){
    	$.cookie('fontSize', 'fontM',{ path: '/', expires:3});
		elm.addClass('fontM');
	}
	else{
    	$.cookie('fontSize', history,{ path: '/', expires:3});
		elm.addClass(history);
	}


   // (!history)? elm.addClass('fontM'):elm.addClass(history);

    $('#fontChange li').click(function(){
        var setFontSize = this.id;
    	$.cookie('fontSize', setFontSize,{ path: '/', expires:3});
        elm.removeClass().addClass(setFontSize);
    });
}