function Subscribe(page)
{
	var e = document.getElementById('txtSignUpEmail');
	if (e && e.value != '') {
		window.open(page + '?address=' + e.value, 'Subscribe', 'width=400,height=200');
	}
}

function OpenEmailWindow(URL, windowName, windowWidth, windowHeight) {
    var availableWidth = screen.availWidth;
    var availableHeight = screen.availHeight;

    var windowLeft = (availableWidth - windowWidth) / 2;
    var windowTop = ((availableHeight - windowHeight) / 2) - 16;

    newWindow = window.open(URL, windowName, "width=" + windowWidth + ",height=" + windowHeight + ",left=" + windowLeft + ",top=" + windowTop + ",location=yes,resizable=yes,scrollbars=yes,toolbar=yes");
    newWindow.focus();
}