function newImage(arg) {
    var rslt = new Image();
    rslt.src = arg;
    return rslt;
}

function bOver(image) {
    document.getElementById(image).src = eval(image +"_on.src");
}

function bOut(image) {
    document.getElementById(image).src = eval(image +"_off.src");
}

var nominate_off = newImage('/images/menus/scouting/nominate_off.jpg');
var nominate_on = newImage('/images/menus/scouting/nominate_on.jpg');

var updates_off = newImage('/images/menus/scouting/updates_off.jpg');
var updates_on = newImage('/images/menus/scouting/updates_on.jpg');

var learn_off = newImage('/images/menus/scouting/learn_off.jpg');
var learn_on = newImage('/images/menus/scouting/learn_on.jpg');

var recommend_off = newImage('/images/menus/scouting/recommend_off.jpg');
var recommend_on = newImage('/images/menus/scouting/recommend_on.jpg');

var qualifications_off = newImage('/images/menus/scouting/qualifications_off.jpg');
var qualifications_on = newImage('/images/menus/scouting/qualifications_on.jpg');

function validate_register() {
    if( document.getElementById('semail').value != '' 
        || document.getElementById('surl').value != '' ) {

        return true;        
    }
    if( document.getElementById('first_name').value=='' ) {
        alert('Please enter your name');
        document.getElementById('first_name').focus();
        return false;
    }
    if( document.getElementById('last_name').value=='' ) {
        alert('Please enter your name');
        document.getElementById('last_name').focus();
        return false;
    }
    var email_match = document.getElementById('real_email').value.match(/@/);
    if( document.getElementById('real_email').value=='' || !email_match ) {
        alert('Please enter a valid email address');
        document.getElementById('real_email').focus();
        return false;
    }
    if( document.getElementById('affiliation').value=='') {
        alert('Please enter your affiliation');
        document.getElementById('affiliation').focus();
        return false;
    }
    if( document.getElementById('phone').value=='' ) {
        alert('Please enter your phone number');
        document.getElementById('phone').focus();
        return false;
    }
    if( document.getElementById('sponsor').value=='' ) {
        alert('Please indicate your sponsor');
        document.getElementById('sponsor').focus();
        return false;
    }
    if( document.getElementById('password').value=='' ) {
        alert('Please choose a password');
        document.getElementById('password').focus();
        return false;
    }
    if( document.getElementById('confirm').value
        != document.getElementById('password').value ) {
        
        alert('Password fields did not match');
        document.getElementById('password').focus();
        return false;
    }
    if( document.getElementById('hint_type').value=='' ) {
        alert('Please choose the type of password hint you will enter');
        document.getElementById('hint_type').focus();
        return false;
    }
    if( document.getElementById('hint').value=='' ) {
        alert('Please enter a password hint');
        document.getElementById('hint').focus();
        return false;
    }
    
    return true;
}