function validate(mail) {
var passed = true;

if (mail.your_name.value == "" || mail.your_name.value == "Your name") {
passed = false;
window.alert("Please enter your name");
mail.your_name.focus();
return false;
}

if (mail.email_address.value == "" || mail.email_address.value == "Your email") {
passed = false;
window.alert("Please enter your email address");
mail.email_address.focus();
return false;
}

window.status=passed;
return window.status;
}