var isNAV4, isNAV6, isIE, isOpera, isWIN, isMAC;
var coll = "";
var styleObj = "";
var os = navigator.userAgent;

if (this.os.indexOf("Win")>=0){
	isWIN = true;
}
if (this.os.indexOf("Mac")>=0){
	isMAC = true;
}
	
if (parseInt(navigator.appVersion) >=4) {
	if (navigator.appName == "Netscape") {
		if ((parseInt(navigator.appVersion)==4)) {
			isNAV4 = true;
		}
		else if (parseInt(navigator.appVersion) >= 5) {
			isNAV6 = true;
		}
		else if (navigator.userAgent.indexOf("Opera")>0) {
			isOpera = true;
		}	
	}
	else {
		isIE = true;
	}
}

if(isIE){
  document.write('<LINK REL="STYLESHEET" TYPE="text/css" HREF="/main/css/main_IE.css"/>')
} else if(isNAV4){
  document.write('<LINK REL="STYLESHEET" TYPE="text/css" HREF="/main/css/main_NN.css"/>')
} else {
  document.write('<LINK REL="STYLESHEET" TYPE="text/css" HREF="/main/css/main_IE.css"/>')
}