var _mediaQueries = [];

function mediaQuery(query) {
	if (_mediaQueries[query] == null) {
		// Not currently thread safe
		var divId = "mediaQuery23805hf3f408h";
		var div = $("<div style=\"display: none;\" id=\"" + divId + "\"></div>");
		$("body").append(div);
		var style = $("<style type=\"text/css\">@media " + query + " { #" + divId + " { visibility: hidden; } }</style>");
		$("head").append(style);
		_mediaQueries[query] = $("#" + divId).css("visibility") === "hidden";
		div.remove();
		style.remove();
	}
	return _mediaQueries[query];
}