// fonction laetis
nav = navigator.appName.substring(0,3);
ver = navigator.appVersion.substring(0,1);

var detect = navigator.userAgent.toLowerCase();
var OS,navigateur,versionNavigateur,total,thestring;

if (checkIt('konqueror'))
{
	navigateur = "Konqueror";
	OS = "Linux";
}
else if (checkIt('safari')) navigateur = "Safari"
else if (checkIt('omniweb')) navigateur = "OmniWeb"
else if (checkIt('opera')) navigateur = "Opera"
else if (checkIt('webtv')) navigateur = "WebTV";
else if (checkIt('icab')) navigateur = "iCab"
else if (checkIt('msie')) navigateur = "Internet Explorer"
else if (checkIt('firefox')) navigateur = "Firefox"
else if (!checkIt('compatible'))
{
	navigateur = "Netscape Navigator"
	versionNavigateur = detect.charAt(8);
}
else navigateur = "An unknown navigateur";

if (!versionNavigateur) versionNavigateur = detect.charAt(place + thestring.length);

if (!OS)
{
	if (checkIt('linux')) OS = "Linux";
	else if (checkIt('x11')) OS = "Unix";
	else if (checkIt('mac')) OS = "Mac"
	else if (checkIt('win')) OS = "Windows"
	else OS = "an unknown operating system";
}


function checkIt(string)
{
	place = detect.indexOf(string) + 1;
	thestring = string;
	return place;
}