$(function(){
	initRollOverImages();
	listCurrent();
	clickList();
	globalNaviImage();
	initOverfuwaImages();
	clickListBorder();
})

function listCurrent(){
	var pageClass = $("body").attr("class");
	var targetTitle = $('#contents #sidenavigation li')
	$(targetTitle).each(function(){
		var currentId = $(this).attr("id"); 
		if( pageClass == currentId ) {
			$(this).find("a").addClass("current");
		}
	});
}

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 initOverfuwaImages() {
  var image_cache = new Object();
  $("img.fuwa").each(function(i) {
    var imgsrc = this.src;
	var imgWidth = this.width;
	var imgHeight = this.height;
    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).parent('a').css({'width':imgWidth,'height':imgHeight,'display':'block','zoom':1,'background-image':'url('+imgsrc_on+')','background-position':'top'});
    $(this).hover(
      function() { $(this).fadeTo("fast", 0); },
      function() { $(this).fadeTo("fast", 100); });
  });
}

function globalNaviImage() {
	
  $("ul#globalnavi li a img").each(function(i) {
    $(this).hover(
      function() { $(this).fadeTo("fast", 0); },
      function() { $(this).fadeTo("fast", 100); });
  });
}
function clickList(){
	var target = $('#contents .clicklistwrap')
	
	$(target).hover(
	function(){$(this).addClass('clicklist').animate(
	{ backgroundColor: '#eff7f6'},
	 500
	 );},
	function(){$(this).removeClass('clicklist').animate(
	{ backgroundColor: '#FFF'},
	 100
	 );});
	
	$(target).click(function(){
		var loc = $(this).find('a').attr('href');
		window.location.href = loc;
	});
}
function clickListBorder(){
	var target = $('#maincontents .linkbox,.round ul li')
	
	$(target).hover(
	function(){$(this).addClass('clicklist').animate(
	{ backgroundColor: '#9fd9d3'},
	 400
	 );},
	function(){$(this).removeClass('clicklist').animate(
	{ backgroundColor: '#EBEAE6'},
	 100
	 );});
	
	$(target).click(function(){
		var loc = $(this).find('a').attr('href');
		window.location.href = loc;
	});
}