/*
common.js
REQUIRES: prototype.js, scriptaculous.js
Site URI: 
Description: 株式会社日本ウエルネス
Since: 2009-04-20
Author: Takuro Hishikawa
Updated: 
*/


// *************************************************
// ページの読み込み時に起動
// *************************************************

Event.observe( window, 'load', function(){
	setFontSize('header');
	setRollOver('roll');
});



// *************************************************
// 汎用関数
// *************************************************


// eventSetter
var isIE = isIE = (document.documentElement.getAttribute("style") == document.documentElement.style);

function eventSetter(obj,eventType,func){
	if(isIE) {
		obj.setAttribute(eventType,new Function(func));
	} else {
		obj.setAttribute(eventType,func);
	}
}


// open new window
function newWindow(uri,width,height){
	var myWindow = window.open(uri, 'newWindow', 'resizable=yes,scrollbars=yes,status=0,width='+width+',height='+height);
	if (myWindow.focus!=null) {
		myWindow.focus();
	}
}


// print window
function printWindow(){
	if(document.getElementById || document.layers){
		window.print();
	}
}


// Ajax recover UTF-8 (for Safari)
function recover_utf8(text){
	if(navigator.appVersion.indexOf('KHTML') > -1){
		var esc = escape(text);
		if(esc.indexOf('%u') < 0 && esc.indexOf('%') > -1){
			text = decodeURIComponent(esc);
		}
	}
	return text;
}


// input clear
function inputClear(id,txt){
	if ($(id).value == txt) $(id).value = '';
}

// scroll to top
function scrollToTop() {
	new Effect.ScrollTo("wrapper",{duration: 0.5});
}



// *************************************************
// 画像ロールオーバー
// *************************************************

var ImgRollOver = Class.create();
ImgRollOver.prototype = {
	initialize: function(img,type){
		this.img = img;
		this.outImgSrc = img.src;
		var imgSrcArray = img.src.split('.');
		var fileType = imgSrcArray[imgSrcArray.length - 1];
		this.overImgSrc = img.src.split('.' + fileType)[0] + '_o.' + fileType;
		if(type == "img"){
			Event.observe(
				img.parentNode,
				'mouseover',
				this.mouseOver.bindAsEventListener(this)
			);
			Event.observe(
				img.parentNode,
				'mouseout',
				this.mouseOut.bindAsEventListener(this)
			);
		}else if(type == "input"){
			Event.observe(
				img,
				'mouseover',
				this.mouseOver.bindAsEventListener(this)
			);
			Event.observe(
				img,
				'mouseout',
				this.mouseOut.bindAsEventListener(this)
			);
		}
		var preImage = new Image();
		preImage.src = this.overImgSrc;
	},
	mouseOver: function(){
		this.img.src = this.overImgSrc;
	},
	mouseOut: function(){
		this.img.src = this.outImgSrc;
	}
}

function setRollOver(className){
	var imgs = document.getElementsByTagName('img');
	var inputs = document.getElementsByTagName('input');
	var preImages = new Array();
	var preInputs = new Array();
	if(imgs){
		for(var i = 0,num = imgs.length;i < num;i++){
			img = imgs[i];
			if(Element.hasClassName(img, className)){
				new ImgRollOver(img,"img");
			}
		}
	}
	if(inputs){
		for(var i = 0,num = inputs.length;i < num;i++){
			input = inputs[i];
			if(input.type == 'image' && Element.hasClassName(input, className)){
				new ImgRollOver(input,"input");
			}
		}
	}
}


// *************************************************
// フォントサイズ切り替えボタン
// *************************************************

var cookiemanager = new CookieManager();

var ChangeFontSize = Class.create();
ChangeFontSize.prototype = {
	initialize: function(){
		this.btn_s = $('font_s');
		this.btn_m = $('font_m');
		this.btn_l = $('font_l');
	},
	change: function(size){
		var body = document.getElementsByTagName('body')[0];
		if(size == 's'){
			Element.addClassName(body,'font_size_s');
			Element.removeClassName(body,'font_size_m');
			Element.removeClassName(body,'font_size_l');
			cookiemanager.setCookie('fontSize','s');
		}else if(size == 'm'){
			Element.removeClassName(body,'font_size_s');
			Element.addClassName(body,'font_size_m');
			Element.removeClassName(body,'font_size_l');
			cookiemanager.setCookie('fontSize','m');
		}else if(size == 'l'){
			Element.removeClassName(body,'font_size_s');
			Element.removeClassName(body,'font_size_m');
			Element.addClassName(body,'font_size_l');
			cookiemanager.setCookie('fontSize','l');
		}
	}
}

var fontsize = new ChangeFontSize();

function setFontSize(targetId){
	var target = targetId;
	var fontSize = cookiemanager.getCookie('fontSize');
	if(fontSize == 's'){
		fontsize.change('s');
	}else if(fontSize == 'm'){
		fontsize.change('m');
	}else if(fontSize == 'l'){
		fontsize.change('l');
	}else{
		cookiemanager.setCookie('fontSize','m');
		fontsize.change('m');
	}
	
	var btnhtml = document.createElement('div');
	btnhtml.id = 'change_font_size';
	btnhtml.innerHTML = '<ul>';
	btnhtml.innerHTML += '<li id="font_l"><a href="javascript:fontsize.change(\'l\');">大</a></li>';
	btnhtml.innerHTML += '<li id="font_m"><a href="javascript:fontsize.change(\'m\');">中</a></li>';
	btnhtml.innerHTML += '<li id="font_s"><a href="javascript:fontsize.change(\'s\');">小</a></li>';
	btnhtml.innerHTML += '</ul>';
	$(target).appendChild(btnhtml);
}