var head = document.getElementsByTagName('head')[0];
var scripts = head.getElementsByTagName('script');
for(var s = 0,num = scripts.length; s < num; s++){
	if(scripts[s].src.indexOf('common.js')){
		var dirPath = scripts[s].src.split('js/common.js')[0];
	}
}

var util = {
	setEvent: function(obj,eventType,func){
		if(this.isIE) {
			obj.setAttribute(eventType,new Function(func));
		} else {
			obj.setAttribute(eventType,func);
		}
	},
	isIE: (document.documentElement.getAttribute("style") == document.documentElement.style)
}

var changeImage ={
	attach: function(){
		var preloadImg = new Object();
		var preNum = 0;
		var images = document.getElementsByTagName('img');
		for(var i = 0,num = images.length;i < num; i++){
			var img = images[i];
			var imgSrc = img.src;
			if(imgSrc.indexOf('_f.') > -1 && img.parentNode.href){
				var newImgSrc = imgSrc.split('_f.')[0] + '_h.' + imgSrc.split('_f.')[1];
				
				preloadImg[preNum] = new Image();
				preloadImg[preNum].src = newImgSrc;
				
				var funcOnImg = 'changeImage.action(this,\'' + newImgSrc + '\')\;return false\;';
				var funcOutImg = 'changeImage.action(this,\'' + imgSrc + '\')\;return false\;';
				
				util.setEvent(img.parentNode,'onmouseover',funcOnImg);
				util.setEvent(img.parentNode,'onmouseout',funcOutImg);
				preNum++;
			}
		}
	},
	action: function(eventAnchor,imgSrc){
		eventAnchor.getElementsByTagName('img')[0].src = imgSrc;
	}
}

var pullDown = {
	setting: {
		showPosition: '31px',
		hidePosition: '-9999px',
		targetElementID: 'GLOBALNAV'
	},
	show: function(LI){
		LI.className = 'onFocus';
		if(LI.getElementsByTagName('ul')[0]){
			LI.getElementsByTagName('ul')[0].style.top = this.setting.showPosition;
		}
	},
	hide: function(LI){
		LI.className = 'onBlur';
		if(LI.getElementsByTagName('ul')[0]){
			LI.getElementsByTagName('ul')[0].style.top = this.setting.hidePosition;
		}
	},
	setEvent: function(){
		var targetEle = document.getElementById(this.setting.targetElementID);
		var lists = targetEle.getElementsByTagName('li');
		var anchors = targetEle.getElementsByTagName('a');
		var liOverFunc = 'pullDown.show(this)';
		var liOutFunc = 'pullDown.hide(this)';
		var aFocusFunc = 'pullDown.show(this.parentNode)';
		var aBlurFunc = 'pullDown.hide(this.parentNode)';
		var aFocusFuncSub = 'pullDown.show(this.parentNode.parentNode.parentNode)';
		var aBlurFuncSub = 'pullDown.hide(this.parentNode.parentNode.parentNode)';
		for(var i = 0; i < lists.length; i++){
			if(lists[i].parentNode.className != 'sub'){
				util.setEvent(lists[i],'onmouseover',liOverFunc);
				util.setEvent(lists[i],'onmouseout',liOutFunc);
			}
		}
		for(var i = 0; i < anchors.length; i++){
			if(anchors[i].parentNode.parentNode.className != 'sub'){
				util.setEvent(anchors[i],'onfocus',aFocusFunc);
				util.setEvent(anchors[i],'onblur',aBlurFunc);
			}else{
				util.setEvent(anchors[i],'onfocus',aFocusFuncSub);
				util.setEvent(anchors[i],'onblur',aBlurFuncSub);
			}
		}
	}
}

var sizeSet = {
	medium: '100%',
	larger: '125%',
	largest: '150%'
}

var fontChangeScript = {
	buttonSet: {
		label: {
			ja: '<img src="' + dirPath + 'images/text_fontsize.gif" width="74" height="18" alt="&#25991;&#23383;&#12469;&#12452;&#12474;&#65306;" />',
			en: '<img src="' + dirPath + 'images/english/text_fontsize.gif" width="74" height="18" alt="Font size: " />'
		},
		medium: {
			negative: {
				ja: '<a href="#" onclick="fontChangeScript.buttonAction(\'' + sizeSet.medium + '\',this);return false;"><img src="' + dirPath + 'images/button_fontsize_medium_n.gif" width="38" height="18" alt="&#65339;&#27161;&#28310;&#65341;" /></a>',
				en: '<a href="#" onclick="fontChangeScript.buttonAction(\'' + sizeSet.medium + '\',this);return false;"><img src="' + dirPath + 'images/english/button_fontsize_medium_n.gif" width="35" height="18" alt="[Medium]" /></a>'
			},
			active: {
				ja: '<a href="#" onclick="fontChangeScript.buttonAction(\'' + sizeSet.medium + '\',this);return false;"><img src="' + dirPath + 'images/button_fontsize_medium_a.gif" width="38" height="18" alt="&#65339;&#27161;&#28310;&#65341;" /></a>',
				en: '<a href="#" onclick="fontChangeScript.buttonAction(\'' + sizeSet.medium + '\',this);return false;"><img src="' + dirPath + 'images/english/button_fontsize_medium_a.gif" width="35" height="18" alt="[Medium]" /></a>'
			}
		},
		larger: {
			negative: {
				ja: '<a href="#" onclick="fontChangeScript.buttonAction(\'' + sizeSet.larger + '\',this);return false;"><img src="' + dirPath + 'images/button_fontsize_larger_n.gif" width="28" height="18" alt="&#65339;&#22823;&#65341;" /></a>',
				en: '<a href="#" onclick="fontChangeScript.buttonAction(\'' + sizeSet.larger + '\',this);return false;"><img src="' + dirPath + 'images/english/button_fontsize_larger_n.gif" width="34" height="18" alt="[Larger]" /></a>'
			},
			active: {
				ja: '<a href="#" onclick="fontChangeScript.buttonAction(\'' + sizeSet.larger + '\',this);return false;"><img src="' + dirPath + 'images/button_fontsize_larger_a.gif" width="28" height="18" alt="&#65339;&#22823;&#65341;" /></a>',
				en: '<a href="#" onclick="fontChangeScript.buttonAction(\'' + sizeSet.larger + '\',this);return false;"><img src="' + dirPath + 'images/english/button_fontsize_larger_a.gif" width="34" height="18" alt="[Larger]" /></a>'
			}
		},
		largest: {
			negative: {
				ja: '<a href="#" onclick="fontChangeScript.buttonAction(\'' + sizeSet.largest + '\',this);return false;"><img src="' + dirPath + 'images/button_fontsize_largest_n.gif" width="39" height="18" alt="&#65339;&#29305;&#22823;&#65341;" /></a>',
				en: '<a href="#" onclick="fontChangeScript.buttonAction(\'' + sizeSet.largest + '\',this);return false;"><img src="' + dirPath + 'images/english/button_fontsize_largest_n.gif" width="36" height="18" alt="[Largest]" /></a>'
			},
			active: {
				ja: '<a href="#" onclick="fontChangeScript.buttonAction(\'' + sizeSet.largest + '\',this);return false;"><img src="' + dirPath + 'images/button_fontsize_largest_a.gif" width="39" height="18" alt="&#65339;&#29305;&#22823;&#65341;" /></a>',
				en: '<a href="#" onclick="fontChangeScript.buttonAction(\'' + sizeSet.largest + '\',this);return false;"><img src="' + dirPath + 'images/english/button_fontsize_largest_a.gif" width="36" height="18" alt="[Largest]" /></a>'
			}
		}
	},
	makeButton: function(lang /* = ja */){	//write button
		if(lang == undefined){
			lang = 'ja';
		}
		if(this.setSize){
			if(this.setSize == sizeSet.medium){
				this.button1 = this.buttonSet.medium.active[lang];
			}else{
				this.button1 = this.buttonSet.medium.negative[lang];
			}
			if(this.setSize == sizeSet.larger){
				this.button2 = this.buttonSet.larger.active[lang];
			}else{
				this.button2 = this.buttonSet.larger.negative[lang];
			}
			if(this.setSize == sizeSet.largest){
				this.button3 = this.buttonSet.largest.active[lang];
			}else{
				this.button3 = this.buttonSet.largest.negative[lang];
			}
		}else{
			this.button1 = this.buttonSet.medium.active[lang];
			this.button2 = this.buttonSet.larger.negative[lang];
			this.button3 = this.buttonSet.largest.negative[lang];
		}
		this.changeItem =
			'<p id="FONTSIZE_CHANGER">' +
			this.buttonSet.label[lang] +
			this.button1 +
			this.button2 +
			this.button3 +
			'</p>';
		document.write(this.changeItem);
	},
	buttonAction: function(size,bAnchor){	//onclick
		this.body = document.getElementsByTagName('body')[0];
		if(this.body){
			this.body.style.fontSize = size;
		}
		this.buttons = bAnchor.parentNode.parentNode.getElementsByTagName('img');
		for(var i = 0, num = this.buttons.length; i < num; i++){
			this.buttons[i].src = this.buttons[i].src.replace('_a.gif','_n.gif');
		}
		bAnchor.getElementsByTagName('img')[0].src = bAnchor.getElementsByTagName('img')[0].src.replace('_n.gif','_a.gif');
		
		this.fontDate = new Date();
		this.fontDate.setTime(this.fontDate.getTime() + (7*24*60*60*1000));
		document.cookie = 'font-size=' + size + '; path=/; expires=' + this.fontDate.toGMTString();
		
	},
	checkCookie: function(){	//read cookie & set font size
		if(document.cookie.indexOf('font-size=') >= 0){
			this.cookieAll = document.cookie + ';'
			this.cookieF = this.cookieAll.indexOf('font-size=');
			this.cookieE = this.cookieAll.indexOf(';',this.cookieF);
			this.fontSizeData = this.cookieAll.substring(this.cookieF,this.cookieE);
			this.setSize = this.fontSizeData.split('=')[1];
			document.write('<style type="text/css">body {font-size: ' + this.setSize + ';}</style>');
		}
	}
}

fontChangeScript.checkCookie();

window.onload = function(){
	changeImage.attach();
}

function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}