I have on my local machines IE10; at the client location they are running IE10 and we both have the exact same version all updated.

On my machines here I can run the pages without any errors and the validation works no problems.

Same Browser and OS on the client machines is giving JavaScript errors and the code won’t work.

Strongly enough the line “form.Addr1.value.length” passes no problems; but if fails at “else if (form.City.length < 1) {” with an error of “Error: Unable to get property 'length' of undefined or null reference”

REMEMBER THIS ERROR IS NOT HAPPENING ON MY MACHINES, only on the client machines; all of them.

<JavaScript Code>

<script type="text/javascript">

// Mike Belcher - mbdev@outlook.com - Post to the SendCustomerLetter.aspx page

function SubmitSendCustomerLetter() {


var form = document.getElementById("OOStitleForm");

if (form.Addr1.value.length < 1) {

alert("Please Enter an Address")


return false


else if (form.City.length < 1) {

alert("Please Enter a City")


return false


else if (form.CorrespTitleState.length < 1) {

alert("Please Select a State")


return false


else if (form.Zip.length < 1) {

alert("Please Enter a Zipcode")


return false


else {

//alert("Validation Has Passed; lets run the code")

// Here we do the post

form.action = 'SendCustomerLetter.aspx';

form.target = 'SendCustomerLetterCorrespondence';


//return true



</JavaScript Code>


<table border='0' cellpadding='2' width='100%' id='CorrespondanceMenu'>


<td width='150' align='right'>Customer Addr 1 </td>

<td width='346'><input name='Addr1' type='text' id='Addr1' value='12345 The Matrix' style='color:#0066FF;width:254;height:22' size='50' /></td>

<td width='368'>

<div align='left'>

<table border='0' cellpadding='0' width='100%' cellspacing='0'>


<td width='50'>Phone</td>

<td width='159'><input name='Phone1' type='text' id='Phone1' value='410-123-4321' style='color:#0066FF;width:140;height:22' size='25' /></td>

<td width='29'>

<input type='button' name='PhoneCall' id='PhoneCall' value='Phone Call' onClick="SubmitPhoneSimple();">

<input type='hidden' name='TitleID' value='1946'/></form>






<td width='150' align='right'>Customer Addr 2 </td>

<td width='346'><input name='Addr2' type='text' id='Addr2' value='HBO and other movie channels' style='color:#0066FF;width:254;height:22' size='50' /></td>

<td width='29'>

<input type='button' name='SendCustomerLetter' id='SendCustomerLetter' value='Send Customer Letter' onClick="SubmitSendCustomerLetter();">



<td width='116' align='right'>City </td>

<td colspan='2'>

<div align='left'>

<table border='0' cellpadding='0' width='84%' cellspacing='0'>


<td width='152'><input name='City' type='text' id='City' value='Matrixville' style='color:#0066FF;width:140;height:22' size='30' /></td>

<td width='38'> State </td>

<td width='68'>

<select name='CorrespTitleState' id='CorrespTitleState' style='color:#0066FF;'>

<option value='FL' selected>FL</option>

<option value='AK'>AK</option>

<option value='AL'>AL</option>

<option value='AR'>AR</option>

<option value='AZ'>AZ</option>

<option value='CA'>CA</option>

<option value='CO'>CO</option>

<option value='CT'>CT</option>

<option value='DE'>DE</option>

<option value='FL'>FL</option>

<option value='GA'>GA</option>

<option value='HI'>HI</option>

<option value='IA'>IA</option>

<option value='ID'>ID</option>

<option value='IL'>IL</option>

<option value='IN'>IN</option>

<option value='KS'>KS</option>

<option value='KY'>KY</option>

<option value='LA'>LA</option>

<option value='MA'>MA</option>

<option value='MD'>MD</option>

<option value='ME'>ME</option>

<option value='MI'>MI</option>

<option value='MN'>MN</option>

<option value='MO'>MO</option>

<option value='MS'>MS</option>

<option value='MT'>MT</option>

<option value='NC'>NC</option>

<option value='ND'>ND</option>

<option value='NE'>NE</option>

<option value='NH'>NH</option>

<option value='NJ'>NJ</option>

<option value='NM'>NM</option>

<option value='NV'>NV</option>

<option value='NY'>NY</option>

<option value='OH'>OH</option>

<option value='OK'>OK</option>

<option value='OR'>OR</option>

<option value='PA'>PA</option>

<option value='RI'>RI</option>

<option value='SC'>SC</option>

<option value='SD'>SD</option>

<option value='TN'>TN</option>

<option value='TX'>TX</option>

<option value='UT'>UT</option>

<option value='VA'>VA</option>

<option value='VT'>VT</option>

<option value='WA'>WA</option>

<option value='WI'>WI</option>

<option value='WV'>WV</option>

<option value='WY'>WY</option>


<td width='32' align='right'>Zip </td>

<td width='148'><input name='Zip' type='text' id='Zip' value='21229' style='color:#0066FF;width:140;height:22' size='10' /></td>

<td> </td>








Makes no sense why the same browser on two different systems, one has errors and the other has none.

Any Ideas?