[RESOLVED] em "'undefined' is null or not an object" only in IE

**lunule** · 03-31-2010, 05:17 AM

Hiya,

I would like to ask your help regarding this damned error message that comes out only in Internet Explorer and makes impossible to submit the form.

The javascript code is:

// JavaScript Document

function checkForm() {
var cname,
cspouse, cemail, chphone, ccellular, caddress, ccity, cstate, czip, cpets, cvolunteer, cadditional;

with(window.document.volApplForm)
{
cname = Name;
cspouse = Spouse;
cemail = Email;
chphone = HomePhone;
ccellular = Cellular;
caddress = Address;
ccity = City;
cstate = State;
czip = Zip;
cpets = Pets;
cvolunteer = Volunteer;
cadditional = Additional; }

var ALERT_TITLE = "Oops!";
var ALERT_BUTTON_TEXT = "Close";

if(document.getElementById) {
window.alert = function(txt) {
createCustomAlert(txt);
}
}

function createCustomAlert(txt) {
d = document;

if(d.getElementById("modalContainer")) return;

mObj = d.getElementsByTagName("body")[0].appendChild(d.createElement("div"));
mObj.id = "modalContainer";

mObj.style.height = document.documentElement.scrollHeight + "px";

alertObj = mObj.appendChild(d.createElement("div"));
alertObj.id = "alertBox";

if(d.all && !window.opera) alertObj.style.top = document.documentElement.scrollTop + "px";

alertObj.style.left = (d.documentElement.scrollWidth - alertObj.offsetWidth)/2 + "px";

h1 = alertObj.appendChild(d.createElement("h1"));
h1.appendChild(d.createTextNode(ALERT_TITLE));

msg = alertObj.appendChild(d.createElement("p"));
msg.innerHTML = txt;

btn = alertObj.appendChild(d.createElement("a"));
btn.id = "closeBtn";
btn.appendChild(d.createTextNode(ALERT_BUTTON_TEXT));
btn.href = "#";

btn.onclick = function() { removeCustomAlert();return false; }
}

if(trim(cname.value) == '')
{
alert('Please enter your name');
function removeCustomAlert() {document.getElementsByTagName("body")[0].removeChild(document.getElementById("modalContainer")); cname.focus();}
return false;
}
else if(trim(cemail.value) == '')
{
alert('Please enter your email');
function removeCustomAlert() {document.getElementsByTagName("body")[0].removeChild(document.getElementById("modalContainer")); cemail.focus();}
return false;
}
else if(!isEmail(trim(cemail.value)))
{
alert('Email address is not valid');
function removeCustomAlert() {document.getElementsByTagName("body")[0].removeChild(document.getElementById("modalContainer")); cemail.focus();}
return false;
}

else if(trim(chphone.value) == '')
{
alert('Please enter your valid phone number');
function removeCustomAlert() {document.getElementsByTagName("body")[0].removeChild(document.getElementById("modalContainer")); chphone.focus();}
return false;
}
else if(trim(ccellular.value) == '')
{
alert('Please enter valid cell phone number');
function removeCustomAlert() {document.getElementsByTagName("body")[0].removeChild(document.getElementById("modalContainer")); ccellular.focus();}
return false;
}
else if(trim(caddress.value) == '')
{
alert('Please enter your valid address');
function removeCustomAlert() {document.getElementsByTagName("body")[0].removeChild(document.getElementById("modalContainer")); caddress.focus();}
return false;
}
else if(trim(ccity.value) == '')
{
alert('Please enter your city');
function removeCustomAlert() {document.getElementsByTagName("body")[0].removeChild(document.getElementById("modalContainer")); ccity.focus();}
return false;
}
else if(trim(cstate.value) == '')
{
alert('Please enter valid state name');
function removeCustomAlert() {document.getElementsByTagName("body")[0].removeChild(document.getElementById("modalContainer")); cstate.focus();}
return false;
}
else if(trim(czip.value) == '')
{
alert('Please enter valid zip code');
function removeCustomAlert() {document.getElementsByTagName("body")[0].removeChild(document.getElementById("modalContainer")); czip.focus();}
return false;
}

else if(trim(cvolunteer.value) == '')
{
alert('Please fill in all fields');
function removeCustomAlert() {document.getElementsByTagName("body")[0].removeChild(document.getElementById("modalContainer")); cvolunteer.focus();}
return false;
}

else if(trim(cadditional.value) == '')
{
alert('Please fill in all fields');
function removeCustomAlert() {document.getElementsByTagName("body")[0].removeChild(document.getElementById("modalContainer")); cadditional.focus();}
return false;
}
else
{
cname.value = trim(cname.value);
cspouse.value = trim(cspouse.value);
cemail.value = trim(cemail.value);
chphone.value = trim(chphone.value);
ccellular.value = trim(ccellular.value);
caddress.value = trim(caddress.value);
ccity.value = trim(ccity.value);
cstate.value = trim(cstate.value);
czip.value = trim(czip.value);
cpets.value = trim(cpets.value);
cvolunteer.value = trim(cvolunteer.value);
cadditional.value = trim(cadditional.value);
return true;
}
}

function trim(str)
{
return str.replace(/^\s+|\s+$/g,'');
}

function isEmail(str)
{
var regex = /^[-_.a-z0-9]+@(([-_a-z0-9]+\.)+(ad|ae|aero|af|ag|ai|al|am|an|ao|aq|ar|arpa|as|at|au|aw|az|ba|bb|bd|be|bf|bg|bh|bi|biz|bj|bm|bn |bo|br|bs|bt|bv|bw|by|bz|ca|cc|cd|cf|cg|ch|ci|ck|cl|cm|cn|co|com|coop|cr|cs|cu|cv|cx|cy|cz|de|dj|dk| dm|do|dz|ec|edu|ee|eg|eh|er|es|et|eu|fi|fj|fk|fm|fo|fr|ga|gb|gd|ge|gf|gh|gi|gl|gm|gn|gov|gp|gq|gr|gs |gt|gu|gw|gy|hk|hm|hn|hr|ht|hu|id|ie|il|in|info|int|io|iq|ir|is|it|jm|jo|jp|ke|kg|kh|ki|km|kn|kp|kr| kw|ky|kz|la|lb|lc|li|lk|lr|ls|lt|lu|lv|ly|ma|mc|md|mg|mh|mil|mk|ml|mm|mn|mo|mp|mq|mr|ms|mt|mu|museum |mv|mw|mx|my|mz|na|name|nc|ne|net|nf|ng|ni|nl|no|np|nr|nt|nu|nz|om|org|pa|pe|pf|pg|ph|pk|pl|pm|pn|pr |pro|ps|pt|pw|py|qa|re|ro|ru|rw|sa|sb|sc|sd|se|sg|sh|si|sj|sk|sl|sm|sn|so|sr|st|su|sv|sy|sz|tc|td|tf |tg|th|tj|tk|tm|tn|to|tp|tr|tt|tv|tw|tz|ua|ug|uk|um|us|uy|uz|va|vc|ve|vg|vi|vn|vu|wf|ws|ye|yt|yu|za| zm|zw)|(([0-9][0-9]?|[0-1][0-9][0-9]|[2][0-4][0-9]|[2][5][0-5])\.){3}([0-9][0-9]?|[0-1][0-9][0-9]|[2][0-4][0-9]|[2][5][0-5]))$/i;

return regex.test(str);
}

And when trying to submit the form, I get the error message:

Line: 177
Character: 4
Code: 0
Error Message: 'undefined' is null or not an object
URL: https://localhost/ruff/scripts/validationVol.js

Do you have an idea what could be the problem? As I checked line 177, it seems to be OK. I checked the web, but didn't find anything related to this message in a situation like this.

Thanks in advance for your comments.