function Sakura(obj) {
	this.dObj = obj;
	this.cObj = obj.styleSheets;
	return this;
}
new Sakura(document);


Sakura.prototype.write = function (s, get) {
	s = "<style type='text/css'>" + s + "<\/style>";
	if (get) return s;
	else this.dObj.write(s);
}


Sakura.prototype.load = function (l, s, get) {
	s = "<link rel='StyleSheet' href='" + (l ? makeCdup(l) : "") + s + ".css' type='text/css'>";
	if (get) return s;
	else this.dObj.write(s);
}


Sakura.prototype.change = function (num, bool, sThis) {
	if (sThis) {
		var val = sThis.options[sThis.selectedIndex].value;
		sThis.options[0].selected = true;
		if (!val)
			return;
		else if (val == "cookie" && confirm("今のスキン設定をcookieに保存しますか？")) {
			setCookie("css", envs.css);
			sThis.options[sThis.length -1].text = "保存しました";
			return;
		}
		setName("css", val);
		location.reload();

	} else {
		switch (num) {
			case "reverse":
				for (var i = 0; i < this.cObj.length; i++)
					this.cObj[i].disabled = this.cObj[0].disabled ? false : true;
				break;
			case "all":
				for (var i = 0; i < this.cObj.length; i++)
					this.cObj[i].disabled = !bool;
				break;
			default:
				this.cObj[num].disabled = !bool;
		}
	}
}


Sakura.prototype.setFrame = function (ff) {
	var s = "";
	ff = " font-family:'" + (ff ? ff + "','" : "") + "Verdana';";
	if (IE) { s +=
		"BODY { overflow:hidden;}"+
		"DIV.contents { position:absolute; top:30px; left:0px; overflow:auto; width:100%; height:95.5%;"+ff+"}"+
		"DIV.navMenu { z-index:10; position:absolute; top:0px; left:0px; overflow:hidden;}"+
		"INPUT.btn, BUTTON, LABEL { cursor:hand;}";
	} else { s +=
		"BODY { margin-top:30px;}"+
		"DIV.contents { "+ff+"}"+
		"DIV.navMenu { z-index:10; position:fixed; top:0px; left:0px; overflow:hidden;}"+
		"INPUT.btn, BUTTON, LABEL { cursor:pointer;}";
	}
	this.write(s);
}


Sakura.prototype.check = function () {
	if (!GTS)
		return "basic";
	else if (envs.css)
		return envs.css;
	else {
		setName("css", "valid");
		return "valid";
	}
}


Sakura.prototype.getSkinSelectorSrc = function (contents) {
	var F = new Function("return envs.css == arguments[0] ? ' selected' : ''");
	var s = "<select onchange='sakura.change(false, false, this)' class='skinSelector'>"+
		"<option>スキン変更</option>"+
		"<option value='valid'" + F("valid") + ">Valid Edition</option>"+
		"<option value='public'" + F("public") + ">Public Edition</option>"+
		"<option value='basic'" + F("basic") + ">ベーシック</option>"+
		"<option value='plain'" + F("plain") + ">プレーン</option>"+
		"<option value='none'" + F("none") + ">なし</option>"+
		"<option value='cookie'>cookieに保存</option>"+
		"</select>";
	return s;
}

var sakura = new Sakura(document);