function Checkfields()
{
		if (document.contacto.nombre.value == ""){
			alert("Please enter your full name");
			return false;}
			
		if (document.contacto.pais.value == ""){
			alert("Please enter your Country of Residence");
			return false;}
			
		if (document.contacto.telefono.value == ""){
			alert("Please enter your country of phone");
			return false;}
			
		if (document.contacto.email.value == ""){
			alert("Please enter a valid E-Mail");
			return false;}
		else {
			if (/^\w+([\.-]?\w+)*@\w+([\.-]?\w+)*(\.\w{2,3})+$/.test(document.contacto.email.value)){
		   return (true)
		  } else {
		   alert("Your E-mail address is not valid");
		   return (false);
		  }
		}

			
}