function validate(frm){
	var email = frm.email;
	if(!email.value.length){
		alert("Please insert the email address");
		email.focus();
		return false;
	}
	if(email.value.indexOf("@") == -1 || email.value.indexOf(".") == -1){
		alert("Please insert a valid email address");
		email.focus();
		return false;
	}
	return true;
}