var good;
function checkEmailAddress(field) {
// the following expression must be all on one line...
var goodEmail = field.value.match(/\b(^(\S+@).+((\.com)|(\.net)|(\.edu)|(\.mil)|(\.gov)|(\.org)|(\..{2,2}))$)\b/gi);
if (goodEmail) {
good = true;
}
else {
alert('Please enter a valid e-mail address.');
field.focus();
field.select();
good = false;
   }
}

function ValidField() {
if (document.layers) {
choice=document.layers['example'];
email=choice.document.form['email'].value;
good2=choice.document.form['good2'].value;

if(email=="" || email==null){
alert('In order to submit this form please complete your email.');choice.document.form['email'].focus();return false;}
else {good = false;
checkEmailAddress(choice.document.form['email']);
if (good) {return true;good2 = True;}
else {return false;good2 = False;}
}
}
else {
email=document.form.email.value;
good2=document.form.good2.value;

if(email=="" || email==null){
alert('In order to submit this form please complete your email.');document.form.email.focus();return false;}
else {good = false;
checkEmailAddress(document.form.email);
if (good) {return true;good2 = True;}
else {return false;good2 = False;}
}
}
}

function thisFORM(){
if (document.layers) {document.layers['example'].document.form.submit()} else {document.form.submit()}
}