// JavaScript Document

//Check form
function checkForm()
{

	var name = document.getElementById('name').value;
	var lastname = document.getElementById('lastname').value;
	var email = document.getElementById('email').value;
	var country = document.getElementById('country').value;

if (name.length == 0)
	{	
		alert ("* Please, insert a valid name.");
		return false;	
	}	
if (lastname.length == 0)
	{	
		alert ("* Please, insert a valid last name.");
		return false;	
	}	
if (country.length == 0)
	{
		alert ("* Please, insert a valid country.");
		return false;	
	}
if (isEmail(email) == false)
	{
		alert ("* Please, insert a valid email.");
		return false;	
	}
	
return true;
}

// this function checks is the email is correct
function isEmail(str) {
return (str.lastIndexOf(".") > 2) && (str.indexOf("@") > 0) && (str.lastIndexOf(".") > (str.indexOf("@")+1));
}