//alert('Welcome!');
function select_css(url){
	var osName = navigator.appVersion;
	var css_size=getCookie("CssSize");
	if (css_size=="") {
		css_size="s";
		setCookie("CssSize",css_size);
	}
	if(osName.indexOf("Win")!=-1){
		document.write('<link id="basicStyle" rel="stylesheet" href="'+ url +'/style_win_' + css_size + '.css" type="text/css">');
	}else if(osName.indexOf("Mac")!=-1){
		document.write('<link id="basicStyle" rel="stylesheet" href="'+ url +'/style_mac_' + css_size + '.css" type="text/css">');
	}else{
		document.write('<link id="basicStyle" rel="stylesheet" href="'+ url +'/style_win_' + css_size + '.css" type="text/css">');
	}
}

function replace_css(css_size,url){
	var osName = navigator.appVersion;
	if(osName.indexOf("Win")!=-1){
		document.getElementById('basicStyle').href= url +'/style_win_' + css_size + '.css'
	}else if(osName.indexOf("Mac")!=-1){
		document.getElementById('basicStyle').href= url +'/style_mac_' + css_size + '.css'
	}else{
		document.getElementById('basicStyle').href= url +'/style_win_' + css_size + '.css'
	}
	setCookie("CssSize",css_size);
	location.reload();
}

function getCookie(key){
	tmp=document.cookie+";";
	tmp1=tmp.indexOf(key, 0);
	if(tmp1!=-1){
		tmp=tmp.substring(tmp1,tmp.length);
		start=tmp.indexOf("=",0)+1;
		end=tmp.indexOf(";",start);
		return(unescape(tmp.substring(start,end)));
	}
	return("");
}

 function setCookie(key,val) {
	setDay = new Date();
	setDay.setTime(setDay.getTime()+(30*1000*60*60*24));
	expDay = setDay.toGMTString();
	document.cookie=key+"="+escape(val)+";expires="+expDay + ";path=/;";
	//";path=" + location.pathname + ";"
}