var BV 		= parseFloat(navigator.appVersion.indexOf("MSIE")>0?navigator.appVersion.split(";")[1].substr(6):navigator.appVersion);
var appname	= navigator.appName;
var Netscape4	= (appname.indexOf('Netscape')!=-1&&(BV>=4&&BV<5))?true:false;

if( Netscape4 )  
	document.write("<LINK rel=\"stylesheet\" href=\"http://www.dbmi.columbia.edu/css/bio_netscape4.css\">\n");
else
 	document.write("<LINK rel=\"stylesheet\" href=\"http://www.dbmi.columbia.edu/css/bio.css\">\n");