function detectVersion()
{
	version = parseInt(navigator.appVersion);
	return version;
}

function detectOS()
{
	if(navigator.userAgent.indexOf('Win') == -1) {
		OS = 'Macintosh';
	} else {
		OS = 'Windows';
	}
	return OS;
}

function detectBrowser()
{
if(navigator.appName.indexOf('Netscape') == -1) {
browser = 'IE';
} else {
browser = 'Netscape';
}
return browser;
}

function FullScreen(){

var adjWidth;
var adjHeight;

if((detectOS() == 'Macintosh') && (detectBrowser() == 'Netscape')) {
adjWidth = 20;
adjHeight = 35;
}
if((detectOS() == 'Macintosh') && (detectBrowser() == 'IE')) {
adjWidth = 20;
adjHeight = 35;
winOptions = 'fullscreen=yes';
}
if((detectOS() == 'Windows') && (detectBrowser() == 'Netscape')) {
adjWidth = 10;
adjHeight = 10;
}
if(detectVersion() < 4) {
self.location.href = '_frames.html';
} else {
var winWidth = screen.availWidth - adjWidth;
var winHeight = screen.availHeight - adjHeight;
var winSize = 'width=' + winWidth + ',height=' + winHeight;
var thewindow_a = window.open('index_est.html', 'WindowName', winSize);
thewindow_a.moveTo(0,0);
}
}

function do_the_thing_a(){
if((detectOS() == 'Windows') && (detectBrowser() == 'IE')) {
window.open('index_est.html','windowname','fullscreen=yes');
} else {
onload=FullScreen();
}
}