function validate() {
  
    if (document.newsform.firstname.value > '')
        return true; 
    else {
        // prompt for alternative value
        document.newsform.firstname.value = prompt('Your first name?',document.newsform.firstname.value);
        setTimeout('document.newsform.getnews.click()',100);
        return false;
    } 
}
function validate1() {
    
    if (document.newsform.surname.value > '')
        return true; 
    else {
        // prompt for alternative value
        document.newsform.surname.value = prompt('Your surname?',document.newsform.surname.value);
        setTimeout('document.newsform.getnews.click()',100);
        return false;
    } 
}
function validate2() { 
    if (document.newsform.email.value.indexOf('@') > -1)
        return true;  // simple check for @ within the form field
    else {
        // prompt for alternative value
        document.newsform.email.value = prompt('Your email address is either missing or incorrect',document.newsform.email.value);
        setTimeout('document.newsform.getnews.click()',100);
        return false;
    }

}
function validate3() {
    
    if (document.newsform.see.value > '')
        return true; 
    else {
        // prompt for alternative value
        document.newsform.see.value = prompt('To stop automated systems we ask you to type what you see',document.newsform.see.value);
        setTimeout('document.newsform.getnews.click()',100);
        return false;
    } 
}