var isIE4=false, isNN4=false, isNN5=false, isMac=false, isWin32=false, isRP=false, isWM=false, isFH=false;

function Init() {
	if (parseInt(navigator.appVersion) >= 4){
		if ((navigator.appName == "Netscape")){
			if (navigator.appVersion.charAt(0) != "5"){
				isNN4 = true;
			} else {
				isNN5 = true;
			}
			if (navigator.platform.indexOf("PPC") != -1){
					isMac = true;
			} else if (navigator.platform.indexOf("Win") != -1) {
				isWin32 = true;
			}
		} else {
			isIE4 = true;
			if(navigator.cpuClass.indexOf("PPC")!=-1){
				isMac = true;  
			} else {
				isWin32 = true;
			}
		}
	}
}

function DetectExplorer() {
	var isIE = 0;
	nome = navigator.appName;
	if (nome.substring(19,27) == "Explorer") {
		isIE = 1;
	}
	return isIE;
}