/*******************************
 *         フッター定義
 *******************************/


var EaLib = {
	startY : 2008
	,nowDate:new Date()
	,copyRight:function(){
  	yearstr="";
		if(this.nowDate.getFullYear() == this.startY){
			yearstr += this.startY;
		}else{
			yearstr = "2008-" + this.nowDate.getFullYear();
		}
		document.write("Copyright © " + yearstr + " Electronic Arts Inc. All rights reserved.\n");
  }
	
}

/*******************************
 *         ロールオーバー定義
 *******************************/

function initRollovers() {
	if (!document.getElementById) return
	
	var aPreLoad = new Array();
	var sTempSrc;
	var aImages = document.getElementsByTagName('img');

	for (var i = 0; i < aImages.length; i++) {		
		if (aImages[i].className == 'imgover') {
			var src = aImages[i].getAttribute('src');
			var ftype = src.substring(src.lastIndexOf('.'), src.length);
			var hsrc = src.replace(ftype, '_on'+ftype);

			aImages[i].setAttribute('hsrc', hsrc);
			
			aPreLoad[i] = new Image();
			aPreLoad[i].src = hsrc;
			
			aImages[i].onmouseover = function() {
				sTempSrc = this.getAttribute('src');
				this.setAttribute('src', this.getAttribute('hsrc'));
			}	
			
			aImages[i].onmouseout = function() {
				if (!sTempSrc) sTempSrc = this.getAttribute('src').replace('_o'+ftype, ftype);
				this.setAttribute('src', sTempSrc);
			}
		}
	}
}

/*******************************
 *     アンカーリンク定義（flash）
 *******************************/

function anchorJump(url,anc) {
location.href = url+"#"+anc;

}

/*******************************
 *     アンカー移動定義
 *******************************/


var pageScrolling = {
	speed : 20,      //set here the scroll speed: when this value increase, the speed decrease. 
	maxStep: 200,	 //set here the "uniform motion" step for long distances
	brakeK: 3,		 //set here the coefficient of slowing down
	hash:null,		
	currentBlock:null,
	requestedY:0,
	init: function() {
			var lnks = document.getElementsByTagName('a');   
			for(var i = 0, lnk; lnk = lnks[i]; i++) {   
				if ((lnk.href && lnk.href.indexOf('#') != -1) &&  ( (lnk.pathname == location.pathname) ||
				('/'+lnk.pathname == location.pathname) ) && (lnk.search == location.search)) {  
				lnk.onclick = pageScrolling.initScroll;   		
				}   
			}
	},
	getElementYpos: function(el){
			var y = 0;
			while(el.offsetParent){  
				y += el.offsetTop    
				el = el.offsetParent;
			}	return y;
	},		
	getScrollTop: function(){
			if(document.all) return (document.documentElement.scrollTop) ? document.documentElement.scrollTop : document.body.scrollTop;
			else return window.pageYOffset;   
	},	
	getWindowHeight: function(){
			if (window.innerHeight)	return window.innerHeight;
			if(document.documentElement && document.documentElement.clientHeight) return document.documentElement.clientHeight;
	},
	getDocumentHeight: function(){
			if (document.height) return document.height;
			if(document.body.offsetHeight) return document.body.offsetHeight;
	},
	initScroll: function(e){
			var targ;  
			if (!e) var e = window.event;
			if (e.target) targ = e.target;
			else if (e.srcElement) targ = e.srcElement;   
			pageScrolling.hash = targ.href.substr(targ.href.indexOf('#')+1,targ.href.length); 
			pageScrolling.currentBlock = document.getElementById(pageScrolling.hash);   
			if(!pageScrolling.currentBlock) return;
			pageScrolling.requestedY = pageScrolling.getElementYpos(pageScrolling.currentBlock); 
			pageScrolling.scroll();  
			return false;
	},
	scroll: function(){
			var top  = pageScrolling.getScrollTop();
			if(pageScrolling.requestedY > top) {  
				var endDistance = Math.round((pageScrolling.getDocumentHeight() - (top + pageScrolling.getWindowHeight())) / pageScrolling.brakeK);
				endDistance = Math.min(Math.round((pageScrolling.requestedY-top)/ pageScrolling.brakeK), endDistance);
				var offset = Math.max(2, Math.min(endDistance, pageScrolling.maxStep));
			} else { var offset = - Math.min(Math.abs(Math.round((pageScrolling.requestedY-top)/ pageScrolling.brakeK)), pageScrolling.maxStep);
			} window.scrollTo(0, top + offset);  
			if(Math.abs(top-pageScrolling.requestedY) <= 1 || pageScrolling.getScrollTop() == top) {
				window.scrollTo(0, pageScrolling.requestedY);
				if(!document.all || window.opera) location.hash = pageScrolling.hash;
				pageScrolling.hash = null;
			} else 	setTimeout(pageScrolling.scroll,pageScrolling.speed);
	}		
}



window.onload = function() {
	pageScrolling.init();
	initRollovers();
}