var agt = navigator.userAgent.toLowerCase();
var appVer = navigator.appVersion.toLowerCase();
var iePos  = appVer.indexOf('msie');
var is_mac    = (agt.indexOf("mac")!=-1);
var is_opera = (agt.indexOf("opera") != -1);
var is_safari = ((agt.indexOf('safari')!=-1)&&(agt.indexOf('mac')!=-1))?true:false;
var is_ie   = ((iePos!=-1) && (!is_opera) && (!is_safari));
var is_wii  = (agt.indexOf("wii") != -1);
var is_ff   = agt.indexOf('firefox') != -1;

if(is_opera) history.navigationMode='compatible';


function getCookie(name){
	var cookies = document.cookie.split('; ');
	var cookie;
	for(var i=0; i<cookies.length; i++){
		cookie = cookies[i].split('=');
		if(cookie[0]==name){
			return cookie[1];
		}
	}
}
function setCookie(name, value, d, unit){
	var d = new Date();
	d.setTime(d.getTime()+(unit=='s' ? d*1000 : d*24*60*60*1000));
	document.cookie = [name, value].join('=') + "; expires=" + d.toGMTString() + '; path=/';
}
function clearCookie(name){
	//alert('clearCookie');
	document.cookie = name + '=; expires=Thu, 01-Jan-1970 00:00:01 GMT; path=/'
}
function gotoPcSite(){
	setCookie('enable_pc',1,10);
	location.href='/jp';
}
function gotoWii(){
	clearCookie('enable_pc');
	location.href='/jp';
}
function openHelp(url){
	url = url ? '/jp/w4i/help/'+url : '/jp/w4i/help/'
	location.href = url;
}
function nextHelp(url){
	//location.href = '/jp/w4i/help/' + url;
	location.replace('/jp/w4i/help/' + url);
}
function closeHelp(){
	history.back();
}