var Login = $('Login');
var Pass = $('Password');
var Email = $('Email');

function UserLoginPrepareName()
{
	if(Login.value == strings.userName)
	{
		Login.style.fontStyle = '';
		Login.style.color = '';
		Login.value = '';
	}
}

function UserLoginFinishName()
{
	if(Login.value == '' || Login.value == strings.userName)
	{
		Login.style.fontStyle = 'italic';
		Login.style.color = '#888';
		Login.value = strings.userName;
	}
}

function UserLoginPreparePass()
{
	if(Pass.value == strings.pass)
	{
	   Pass.style.color  = '';
	   Pass.value = '';
	}
}

function UserLoginFinishPass()
{
	if(Pass.value == '')
	{
		Pass.style.color  = '#888';
	   Pass.value = strings.pass;
	}
}

function UserPassPrepareEmail()
{
	if(Email.value == strings.email)
	{
		Email.style.fontStyle = '';
	   Email.style.color  = '';
	   Email.value = '';
	}
}

function UserPassFinishEmail()
{
	if(Email.value == '')
	{
		Email.style.fontStyle = 'italic';
		Email.style.color  = '#888';
	   Email.value = strings.email;
	}
}

if(Login !== null && Pass !== null)
{
	U.setEvent(Login, 'onfocus', UserLoginPrepareName);
	U.setEvent(Login, 'onblur', UserLoginFinishName);
	U.setEvent(Pass, 'onfocus', UserLoginPreparePass);
	U.setEvent(Pass, 'onblur', UserLoginFinishPass);

	UserLoginFinishName();
	UserLoginFinishPass();
}

if(Email !== null)
{
	U.setEvent(Email, 'onfocus', UserPassPrepareEmail);
	U.setEvent(Email, 'onblur', UserPassFinishEmail);

	UserPassPrepareEmail();
	UserPassFinishEmail();
}