function doClick(f)
{
	email = f["your_email"].value;
	if (email == '')
	{
		alert("Пожалуйста введите ваш e-mail.");
		f["your_email"].focus();
		return;
	}
	s = "/plugins/subsys/subscribe.php?";
	a = 1;
	if (f["whattodo"].options.length > 0)
		for (i = 0; i < f["whattodo"].options.length; i++)
			if (f["whattodo"].options[i].selected)
				a = f["whattodo"].options[i].value;
	if (a != 0) ss = "unsub"; else ss = "sub";
	s += "email=" + email + "&action=" + ss;
	cnShowWnd(s, "subscr_wnd", 400, 300);
}

function cnShowWnd(url,wnd_name,width,height)
{
	if (top[wnd_name]!=null && typeof(top[wnd_name])=='object' && !top[wnd_name].closed && top[wnd_name].load_flag==1)
	{
		if(top[wnd_name].document.location.href!=url) top[wnd_name].document.location.href=url;
		top[wnd_name].focus();
	}
	else
	{
		top[wnd_name] = window.open(url, wnd_name, 'width=' + width + ',height=' + height + ',status=no,menubar=no,resizable=yes,scrollbars=yes,left=' + String((screen.width-width)/2) + ',top=' + String((screen.height-height)/2));
	}
}