Javascript issue with IE 5

Question

I have a jsp where in some javascript is used to perform some validations. it works perfectly fine with IE 6. When the same application is run from a different machine that has IE 5, it gives me a javascript error:
'undefined' is null or not an objectIf any one had faced a similar situation, can you throw some light on what exactly could be the reason for this?
Thanks,
SirG

Answer 1

The following is my piece of code:
//myForm --- is my form object
//attKey --- its just a String "name"
function getAttribute(myForm , attKey){
   for(i=0; myForm.attributes.length > i; i++){
     var att = myForm .attributes;
     alert(" fetched Attribute value = " + att.name);
// att.name --- fetches me the names of all the attributes in IE 6.0
// att.name --- the same fetches me 'undefined' always in IE 5.5
     if (att.name == attKey){
          alert("attkey:: "+ attKey + " att.value::"+att.name);
          return att;
alert(" nothing matched so returning null");
Client doesn't want to upgrade to IE 6, as there are more than 350 brances all over and there are many prior applications that are still not compatible with IE 6.