/*--------------------------------------------------------------------------*
 *  
 *  footerFixed.js
 *  
 *  MIT-style license. 
 *  
 *  2007 Kazuma Nishihata [to-R]
 *  http://blog.webcreativepark.net
 *  
 *--------------------------------------------------------------------------*/

new function(){
	
	var footerId = "footer";
	//メイン
	function footerFixed(){
		//ドキュメントの高さ
		var dh = document.getElementsByTagName("body")[0].clientHeight;
		//フッターのtopからの位置
		document.getElementById(footerId).style.top = "0px";
		var ft = document.getElementById(footerId).offsetTop;
		//フッターの高さ
		var fh = document.getElementById(footerId).offsetHeight;
		//ウィンドウの高さ
		if (window.innerHeight){
			var wh = window.innerHeight;
		}else if(document.documentElement && document.documentElement.clientHeight != 0){
			var wh = document.documentElement.clientHeight;
		}
		if(ft+fh<wh){
			document.getElementById(footerId).style.position = "relative";
			document.getElementById(footerId).style.top = (wh-fh-ft-1)+"px";
		}
	}
	
	//文字サイズ
	function checkFontSize(func){
	
		//判定要素の追加	
		var e = document.createElement("div");
		var s = document.createTextNode("S");
		e.appendChild(s);
		e.style.visibility="hidden"
		e.style.position="absolute"
		e.style.top="0"
		document.body.appendChild(e);
		var defHeight = e.offsetHeight;
		
		//判定関数
		function checkBoxSize(){
			if(defHeight != e.offsetHeight){
				func();
				defHeight= e.offsetHeight;
			}
		}
		setInterval(checkBoxSize,1000)
	}
	
	//イベントリスナー
	function addEvent(elm,listener,fn){
		try{
			elm.addEventListener(listener,fn,false);
		}catch(e){
			elm.attachEvent("on"+listener,fn);
		}
	}

	addEvent(window,"load",footerFixed);
	addEvent(window,"load",function(){
		checkFontSize(footerFixed);
	});
	addEvent(window,"resize",footerFixed);
	
}
/*--------------------------------------------------------------------------*
*背景画像固定用
*参照元　http://www.webopixel.net/javascript/203.html
*--------------------------------------------------------------------------*/
$(function() {
	setSize();
	//リサイズしたら実行
	$(window).resize(function(){
	   setSize();
	});
});
function setSize() {
	//画像サイズ指定
	var imgW = 1000;
	var imgH = 666;
	//ウィンドウサイズ取得
	var winW = $(window).width();
	var winH = $(window).height();
	
	var scaleW = winW / imgW;
	var scaleH = winH / imgH;
	var fixScale = Math.max(scaleW, scaleH);
	
	var setW = imgW * fixScale;
	var setH = imgH * fixScale;

	var moveX = Math.floor((winW - setW) / 2);
	var moveY = Math.floor((winH - setH) / 2);

	$('#bg').css({
		'width': setW,
		'height': setH,
		'left' : moveX,
		'top' : moveY
	});
}

/*--------------------------------------------------------------------------*
*ページトップへスクロールする
*--------------------------------------------------------------------------*/
$(function(){
  $('a[href*=#]').click(function() {
    var $target=$(this.hash);
    var targetY=$target.offset().top;
    $($.browser.opera ? document.compatMode == 'BackCompat' ? 'body' : 'html' :'html,body').animate({scrollTop: targetY},800);return false;
  });
});