<SCRIPT LANGUAGE="JavaScript">

<!-- Begin
// Preload images
var empty = new Image(); empty.src = "fieldempty.gif";
var email = new Image(); email.src = "emailerror.gif";
var zipcd = new Image(); zipcd.src = "ziperror.gif";
var phone = new Image(); phone.src = "phoneerror.gif";

var haveerrors = 0;
function showImage(imagename, imageurl, errors) {
document[imagename].src = imageurl;
if (!haveerrors && errors) haveerrors = errors;
}

function validateForm(f) {
haveerrors = 0;
(f.fname.value.length < 1) // validate first name length
? showImage("firstnameerror", "fieldempty.gif", true)   // no semi-colon after this line!
: showImage("firstnameerror", "blankimage.gif", false); // true = errors, false = no errors

(f.lname.value.length < 1) // validate last name length
? showImage("lastnameerror", "fieldempty.gif", true)
: showImage("lastnameerror", "blankimage.gif", false);

(f.zip.value.length != 5) // validate zip code length
? showImage("ziperror", "ziperror.gif", true)
: showImage("ziperror", "blankimage.gif", false);

phonenumlength = f.area.value.length + 
f.exchange.value.length + f.number.value.length;

(phonenumlength != 10) // validate phone number length
? showImage("phoneerror", "phoneerror.gif", true)
: showImage("phoneerror", "blankimage.gif", false);

(f.email.value.search("@") == -1 || f.email.value.search("[.*]") == -1) // validate email
? showImage("emailerror", "emailerror.gif", true)
: showImage("emailerror", "blankimage.gif", false);

return (!haveerrors);
}
//  End -->
</script>
