if (navigator.appName=="Microsoft Internet Explorer") {
	nav = "IE";
	v_hidden = "hidden";
	v_show = "visible";
	doc = document.all;
	sty = "style.";
} else {
	nav = "NS";
	v_hidden = "hide";
	v_show = "show";
	sty = "";
	doc = document;
}

function styleOf(objId) {
	objStyle = (nav=="IE") ? objId.style : objId;
	return objStyle;
}