function encryptAscii(str:String, opt:Boolean):String {
	var strArr:Array = str.split("");
	for (var i in strArr) {
		strArr[i] = String.fromCharCode( strArr[i].charCodeAt(0)+(opt ? 64 : -64) );
	}
	return strArr.join("");
}

//ueage
//var ch:String = "written by samstudio.2005.12.04";
//trace(ch);
//ch = encryptAscii(ch, true);
//trace(ch);
//ch = encryptAscii(ch, false);
//trace(ch);

en_btn.onRelease=function () {
	out_txt.text=encryptAscii(in_txt.text, true)
}
de_btn.onRelease=function () {
	out_txt.text=encryptAscii(in_txt.text, false)
}