function emailCheck(email) {
	var emailPat = /^([a-zA-Z0-9_\-\.]+)@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.)|(([a-zA-Z0-9\-]+\.)+))([a-zA-Z]{2,4})(\]?)$/;
	var matchArray = email.match(emailPat);
	if (matchArray == null) {
		return false;
	}
	return true;
}

function popUpCustom(_url, myw, myh) {

	var x = ((screen.width/2)-(myw/2));
	var y = ((screen.height/2)-(myh/2));

	var myparams = 'innerWidth=' + myw + ', innerHeight=' + myh + ', width=' + myw + ', height=' + myh + ', left=' + x + ', top=' + y + ', screenX=' + x + ', screenY=' + y;

	myparams += ', alwaysLowered=0, alwaysRaised=1, channelmode=0, dependent=0, directories=0, fullscreen=0, hotkeys=1, location=0, menubar=0, noresize=1, scrollbars=0, status=0, titlebar=0, toolbar=0';

	centerwindow = window.open(_url, 'folderpopup', myparams);
	centerwindow.focus();
}