function showPopup(id)
{
	if(document.getElementById(id).style.visibility != "visible")
	{
	document.getElementById(id).style.left = document.body.parentNode.offsetWidth/2 - document.getElementById(id).offsetWidth/2 + "px";
	//document.getElementById(id).style.top = document.body.parentNode.offsetHeight/2 - document.getElementById(id).offsetHeight/2 + "px";
	
	document.getElementById(id).style.top = (document.body.scrollTop + ((document.body.clientHeight - document.getElementById(id).offsetHeight)/2)) + "px";
	document.getElementById(id).style.visibility = "visible";
	}
}

function validateLogin()
{
	if(document.getElementById("login").value == "")
	{
		document.getElementById("loginWarning").innerHTML = "Please enter your User Name.";
		document.getElementById("login").focus();
	}
	else if(document.getElementById("pass").value == "")
	{
		document.getElementById("pass").focus();
		document.getElementById("loginWarning").innerHTML = "Please enter your Password.";
	}
	else document.getElementById("loginForm").submit();
}

function validatePassword()
{
	if(document.getElementById("forgotLogin").value == "")
	{
		document.getElementById("passwordWarning").innerHTML = "Please enter your User Name.";
		document.getElementById("forgotLogin").focus();
	}
	else if(document.getElementById("forgotEmail").value == "")
	{
		document.getElementById("passwordWarning").innerHTML = "Please enter your email address.";
		document.getElementById("forgotEmail").focus();
	}
	else document.getElementById("passwordForm").submit();
}

function validateSample()
{
	if(document.getElementById("sampleEmail").value == "")
	{
		document.getElementById("sampleWarning").innerHTML = "Please enter your email address.";
		document.getElementById("sampleEmail").focus();
	}
	else if(document.getElementById("sampleEmail").value.indexOf("@") < 1 || document.getElementById("sampleEmail").value.indexOf(".") < 1)
	{
		document.getElementById("sampleWarning").innerHTML = "Invalid email address!";
		document.getElementById("sampleEmail").focus();
	}
	else
	{
		window.open("one_day_email.php?addy=" + document.getElementById("sampleEmail").value,'tgPopsample','toolbar=no,location=no,directories=no,status=no,menubar=no,status=no,scrollbars=yes,resizable=yes,width=322,height=300,top=20,left=300');
		document.getElementById("samplePopup").style.visibility = "hidden";
		document.getElementById("sampleEmail").value = "";
	}
}