var browser = navigator.appName
var platform = navigator.platform
var version = parseInt(navigator.appVersion)
// convert all characters to lowercase to simplify testing
var agt=navigator.userAgent.toLowerCase();
var is_irix  = (agt.indexOf("irix") !=-1);    // SGI


var ie5 = false;
var ns4 = (browser == "Netscape" && version >= 4)
var ie4 = (browser == "Microsoft Internet Explorer" && version >= 4)
var ns3 = (browser == "Netscape" && version == 3)
var ie3 = (browser == "Microsoft Internet Explorer" && version < 4)
var ns2 = (browser == "Netscape" && version < 3)
// Microsoft Stupidity Check(tm).
if (ie4) {
	if (navigator.userAgent.indexOf('MSIE 5')>0) {
		ie5 = true;
	}
}

function setFontSize(fontSizeVar, level){
	
	switch (level){
		case -1:
			prefix="";
			break;
		case 0:
			prefix="../";
			break;
		case 1:
			prefix="../../";
			break;
		case 2:
			prefix="../../../";
			break;
		case 3:
			prefix="../../../../";
			break;
		case 4:
			prefix="../../../../";
			break;
		case "db":
			prefix="/";
			break;
	}
	if (fontSizeVar == "small") {
		if (ns4) {
			if (platform!="Win32") {  // platform is not PC 
				if (is_irix) {
					document.write('<LINK REL="STYLESHEET" TYPE="text/css" HREF="'+prefix+'linkpcsmall.css">');
				} else {
					document.write('<LINK REL="STYLESHEET" TYPE="text/css" HREF="'+prefix+'linkmacsmall.css">');
				}
			} else {
				document.write('<LINK REL="STYLESHEET" TYPE="text/css" HREF="'+prefix+'linkpcsmall.css">');
			}
		} else {
			if (platform!="Win32") {  // platform is not PC 
				if (ie5) {
					document.write('<LINK REL="STYLESHEET" TYPE="text/css" HREF="'+prefix+'linkmacsmall5.css">');
				} else {
					document.write('<LINK REL="STYLESHEET" TYPE="text/css" HREF="'+prefix+'linkmacsmall.css">');
				}
			} else {
				document.write('<LINK REL="STYLESHEET" TYPE="text/css" HREF="'+prefix+'linkpcsmall.css">');
			}
		}

	} else {
		if (ns4) {
			if (platform!="Win32") {  // platform is not PC 
				if (is_irix) {
					document.write('<LINK REL="STYLESHEET" TYPE="text/css" HREF="'+prefix+'linkmacsmall.css">');
				} else {
					document.write('<LINK REL="STYLESHEET" TYPE="text/css" HREF="'+prefix+'linkmaclarge.css">');
				}
			} else {
				document.write('<LINK REL="STYLESHEET" TYPE="text/css" HREF="'+prefix+'linkpclarge.css">');
			}
		} else {
			if (platform!="Win32") {  // platform is not PC 
				if (ie5) {
					document.write('<LINK REL="STYLESHEET" TYPE="text/css" HREF="'+prefix+'linkmacsmall.css">');
				} else {
					document.write('<LINK REL="STYLESHEET" TYPE="text/css" HREF="'+prefix+'linkmaclarge.css">');
				}
			} else {
				document.write('<LINK REL="STYLESHEET" TYPE="text/css" HREF="'+prefix+'linkpclarge.css">');
			}
		}

	}
}