<!-- Begin
// Preload images
var empty = new Image(); empty.src = "pics/fieldempty.gif";
var email = new Image(); email.src = "pics/emailerror.gif";
var blank = new Image(); blank.src = "pics/blankimage.gif";
var phone = new Image(); phone.src = "pics/phoneerror.gif";

function isNum(passedVal) {
	for (i=0; i<passedVal.length; i++) {
		if(passedVal.charAt(i)<"0") {
			return false;
		}
		if(passedVal.charAt(i)>"9") {
			return false;
		}
	}
	return true;
}

var haveerrors = 0;
function showImage(imagename, imageurl, errors) {
document[imagename].src = imageurl;
if (!haveerrors && errors) haveerrors = errors;
}

function validateForm(f) {
haveerrors = 0;
(f.name.value.length < 1) // validate name length
? showImage("nameerror", "pics/fieldempty.gif", true)   // no semi-colon after this line!
: showImage("nameerror", "pics/blankimage.gif", false); // true = errors, false = no errors

(f.subject.value.length < 1) // validate subject
? showImage("subjecterror", "pics/fieldempty.gif", true)   // no semi-colon after this line!
: showImage("subjecterror", "pics/blankimage.gif", false); // true = errors, false = no errors

(f.message.value.length < 1) // validate message
? showImage("messageerror", "pics/fieldempty.gif", true)   // no semi-colon after this line!
: showImage("messageerror", "pics/blankimage.gif", false); // true = errors, false = no errors

//validate email
re=/[\\\|\/\"\':;,()\&\* ]/; // includes several characters that should not appear in a valid e-mail address
(
 f.email.value.search("@") == -1 ||  // there are no "@" signs
 f.email.value.search("[.*]") == -1 || // there are no dots 
 re.exec(f.email.value)!= null || // characters listed in 're' (above) do appear
 f.email.value.indexOf("@")!=f.email.value.lastIndexOf("@") || // there are several "@" signs 
 f.email.value.lastIndexOf(".")<=f.email.value.indexOf("@") || // there is no dot after the "@" sign
 f.email.value.lastIndexOf(".")==f.email.value.length-1 // the string ends with a dot
 ) 
? showImage("emailerror", "pics/emailerror.gif", true)
: showImage("emailerror", "pics/blankimage.gif", false);

return (!haveerrors);
}
//End
<!-- Begin autoTab JavaScript function
var isNN = (navigator.appName.indexOf("Netscape")!=-1);
function autoTab(input,len, e) {
var keyCode = (isNN) ? e.which : e.keyCode;
var filter = (isNN) ? [0,8,9] : [0,8,9,16,17,18,37,38,39,40,46];
if(input.value.length >= len && !containsElement(filter,keyCode)) {
input.value = input.value.slice(0, len);
input.form[(getIndex(input)+1) % input.form.length].focus();
}
function containsElement(arr, ele) {
var found = false, index = 0;
while(!found && index < arr.length)
if(arr[index] == ele)
found = true;
else
index++;
return found;
}
function getIndex(input) {
var index = -1, i = 0, found = false;
while (i < input.form.length && index == -1)
if (input.form[i] == input)index = i;
else i++;
return index;
}
return true;
}
//  End autoTab JavaScript function -->