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 -->

function validate() {

	if (document.form.firstname.value == "") {
		alert("Please enter your first name.");
		return false;
	}
	if (document.form.lastname.value == "") {
		alert("Please enter your last name.");
		return false;
	}
	if (document.form.email.value == "") {
		alert("Please enter your email address.");
		return false;
	}
	if (document.form.dphone2.value == "") {
		alert("Please enter your day time phone number with area code.");
		return false;
	}
	if (document.form.evephone2.value == "") {
		alert("Please enter your evening time phone number with area code.");
		return false;
	}
return true;
}