var path="http://www.hirose-net.com/";
var name="hirose";
var cookie=document.cookie;
if(-1==cookie.indexOf(name)){
	var file=path+"css/medium.css";
}else{
	var pos_s=cookie.indexOf(name)+name.length+1;
	var pos_e=cookie.indexOf(";",pos_s);
	if(-1==pos_e){
		var file=cookie.slice(pos_s);
	}else{
		var file=cookie.slice(pos_s,pos_e);
	}
}
document.write('<link rel="stylesheet" href="'+file+'" type="text/css" />');
function sizeCh(str){
	var targetFile;
	switch(str){
	case "small":
		targetFile=path+"css/small.css";
	break;
	case "medium":
		targetFile=path+"css/medium.css";
	break;
	case "big":
		targetFile=path+"css/big.css";
	break;
	default:
		alert("error");
	break;
	}
	document.cookie="hirose="+targetFile+";path=/;";
	window.location.reload();
}