function getOSType() {	var uAgent = navigator.userAgent.toUpperCase();	if (uAgent.indexOf("MAC") >= 0) return "MacOS";	if (uAgent.indexOf("WIN") >= 0) return "Windows";	if (uAgent.indexOf("X11") >= 0) return "UNIX";	return "";}function getBrowserName() {	var aName = navigator.appName.toUpperCase();	if (aName.indexOf("NETSCAPE") >= 0)  return "Netscape";	if (aName.indexOf("MICROSOFT") >= 0) return "Explorer";	return "";}function getBrowserVersion() {	str = navigator.appName.toUpperCase();	version = 0;	appVer = navigator.appVersion;	if (str.indexOf("NETSCAPE") >= 0) {		s = appVer.indexOf(" ",0);		version = eval(appVer.substring(0,s));		if (version >= 5) version++;	}	if (str.indexOf("MICROSOFT") >= 0) {		appVer = navigator.userAgent;		s = appVer.indexOf("MSIE ",0) + 5;		e = appVer.indexOf(";",s);		version = eval(appVer.substring(s,e));	}	return version;}os = getOSType();browser = getBrowserName();version = getBrowserVersion();if ((os=="Windows") && (browser=="Explorer")) {	document.write("<style type='text/css'>");	document.write(".article_vol19_04 img { left: -257px;}");	document.write("</style>");}