function thisMovie(movieName) {
	if (navigator.appName.indexOf("Microsoft") != -1) {
		return window[movieName];
	}
	else {
		return document[movieName];
	}
}
//イベントに処理を追加
function addEvent(func) {
	if (window.addEventListener) {
		window.addEventListener("load", func, false);
	} else if (window.attachEvent) {
		window.attachEvent("onload", func);
	}
}
addEvent(function(){thisMovie("movie").setAs(css)});