function fontChange(str){
	var targetFile;
	switch(str){
	case "small":
		targetFile="/ownerz/css/fontsize_s.css";
	break;
	case "big":
		targetFile="/ownerz/css/fontsize_l.css";
	break;
	default:
		alert("error");
	break;
	}
	document.cookie="fontstyle="+targetFile+";path=/ownerz/;";
	window.location.reload();
}

var name="fontstyle";
var cookie=document.cookie;
if(-1==cookie.indexOf(name)){
	var file='/ownerz/css/fontsize_s.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" />');