function checkBrowser() {

	if (getBrowser('konqueror'))        { browser = "konqueror"; }
	else if (getBrowser('safari'))      { browser = "safari"; }
	else if (getBrowser('omniweb'))     { browser = "omniweb"; }
	else if (getBrowser('opera'))       { browser = "opera"; }
	else if (getBrowser('webtv'))       { browser = "webtv";; }
	else if (getBrowser('icab'))        { browser = "icab"; }
	else if (getBrowser('msie'))        { browser = "msie"; }
	else if (!getBrowser('compatible')) { browser = "netscape"; }
	else                                { browser = "unknown"; }

	return browser;

}

function getBrowser(string) {

	var detect = navigator.userAgent.toLowerCase();

	place = detect.indexOf(string) + 1;
	thestring = string;
	return place;

}

function popup(message) {

	if (checkBrowser() == 'msie') {

		document.getElementById("popup").innerHTML = '<p>\n\n' + message + '\n\n</p>';
		document.getElementById("popup").style.display = "block";
		document.getElementById("popup").style.left = (document.body.offsetWidth - 260) / 2 < 0 ? 0 : (document.body.offsetWidth - 260) / 2 + 'px';
		document.getElementById("popup").style.top = (document.body.offsetHeight - 120) / 2 < 0 ? 0 : (document.body.offsetHeight - 120) / 2 + 'px';

	} else {

		document.getElementById("popup").innerHTML = '<p>\n\n' + message + '\n\n</p>';
		document.getElementById("popup").style.display = "block";
		document.getElementById("popup").style.left = ((window.innerWidth - 320) / 2) + 'px';
		document.getElementById("popup").style.top = ((window.innerHeight - 120) / 2 - 100) + 'px';

	}

	setTimeout('closepopup()', 3000);

}

function closepopup() {

	document.getElementById("popup").style.display = "none";

}