function showLoginForm()
{
	var loginElements = document.getElementById("loginElements");
	if(loginElements.style.visibility=='visible')
	{
		//login form if email and password filled out.
		if(document.getElementById('email').value.length>0 && document.getElementById('pw').value.length>0)
			return true;
		else
		{
			//rehide form if no email and no password entered.
			loginElements.style.visibility='hidden';
			return false;
		}			
	}//end if already visible
	else
	{
		loginElements.style.visibility = 'visible';
		document.getElementById('email').focus();
		return false;
	}//end show form
}//end function