//-- Putting browser info into global variables in the head of a page
//-- gives access to those variables to all scripts within the page.

var browserName = navigator.appName
var browserVersion = navigator.appVersion
var browserVersionNum = parseFloat(browserVersion)
var agt=navigator.userAgent

// Diagnostics
/*
      document.write("Your agt is <b>"+ agt +"</b><br>")
        document.write("Browser : <b>"+ browserName + "</b><br>")
        document.write("Browser Version: <b>"+ browserVersionNum + "</b><p>")
*/


//-- Write platform, browser, & version

//Mac Netscape
	if (agt.indexOf("Mac")!=-1 && browserName == "Netscape" && browserVersionNum != 5){
			document.write("<link rel='stylesheet' HREF='styles/ucsf_mac_netscape.css' TYPE='text/css'>")
	}

	else {
			document.write("<link rel='stylesheet' HREF='styles/ucsf_mac_netscape_6.css' TYPE='text/css'>") 
	}


//Mac IE   
	if (agt.indexOf("Mac")!=-1 && browserName != "Netscape"){
		
		// IE 5.x
		if(agt.indexOf("MSIE 5.") !=-1){
			document.write("<link rel='stylesheet' HREF='styles/ucsf_mac_ie_5.css' TYPE='text/css'>")
		}
		// IE 4.x	
		else{	
			document.write("<link rel='stylesheet' HREF='styles/ucsf_mac_ie_4.css' TYPE='text/css'>")
	}
}
//PC & Unix Netscape
	if (agt.indexOf("Mac") ==-1 && browserName == "Netscape" && browserVersionNum != 5){
	document.write("<link rel='stylesheet' HREF='styles/ucsf_win_netscape.css' TYPE='text/css' title='windows netscape'>")
	}
	else {
			document.write("<link rel='stylesheet' HREF='styles/ucsf_win_netscape_6.css' TYPE='text/css' title='windows netscape 6'>")
}

//PC & Unix IE
	if (agt.indexOf("Mac") ==-1 && browserName != "Netscape"){
		document.write("<link rel='stylesheet' HREF='styles/ucsf_win_ie.css' TYPE='text/css' title='windows ie'>")
}