function try_to_subscribe()
{
	var email = document.all.subscribe_form.mail.value;

	emailTest = "^[_\\.0-9A-z-]+@([0-9a-z][0-9a-z_-]+\\.)+[a-z]{2,4}$"; 
	var regex = new RegExp(emailTest); 
	if (!regex.test(email) || !(email.length > 0) || email=='ваш e-mail')
	{
		alert('Необходимо указать корректный e-mail!');
		return false;
	}
	else
	{
		window.open('','zoom','width=300,height=250');
	}

}


function flip_value_in(id,value)
{
	if (id.value == value)
	{
		id.value = "";
	}
}


function flip_value_out(id,value)
{
	if (id.value == "")
	{
		id.value = value;
	}
}


function openWindow(windowId)
{
	var window = document.getElementById(windowId);
	if ((window.style.display == 'none') || !window.style.display)
	{
		window.style.display = 'block';
	}
	else
	{
		window.style.display = 'none';
	}
}