function focused(id) {
if(document.getElementById(id).value == 'Insert valid email'){document.getElementById(id).value = ''}
}

function submitit() {
email = document.getElementById('email').value
if(email.indexOf('@') < 0 || email.indexOf('.') < 0) {
alert("You have entered an invalid email\nPlease try again")
}
else {
document.getElementById('frm').submit()
}
}