[Javascript] variable undefined problem

[michael_dougherty at pbp.com (Michael Dougherty)]

Sorry, I only looked at the code snippet of the email I replied to

-----Original Message-----
From: javascript@xxxxxxxxxx [mailto:javascript@xxxxxxxxxx] 
Sent: Thursday, May 29, 2003 10:29 AM
To: javascript@xxxxxxxxxx
Subject: RE: [Javascript] variable undefined problem
Importance: Low


Each itemX is a variable that is a string defined in an external js
file,
right?

-----Original Message-----
From: Michael Dougherty [mailto:michael_dougherty@xxxxxxx]
Sent: Thursday, May 29, 2003 10:27 AM
To: javascript@xxxxxxxxxx
Subject: RE: [Javascript] variable undefined problem


Is itemN supposed to be an object?  No context is supplied to know where
to be looking for it.

"Variable undefined" because there was no earlier "var item0 ="
statement.  If you are looking for a form object named item0, then you
need syntax like: var ItemValue = eval("document.form["myForm"].item" +
I + ".value")

-----Original Message-----
From: javascript@xxxxxxxxxx [mailto:javascript@xxxxxxxxxx] 
Sent: Thursday, May 29, 2003 8:16 AM
To: javascript@xxxxxxxxxx
Subject: RE: [Javascript] variable undefined problem
Importance: Low


How about using something like this?  I changed itemCheck to be a
boolean
flag.  If you didn't have an item0, that would have raised an error.  
 
var i = 0;
var itemCheck = true; 
while(window.itemCheck) 
{ 
  x = "item" + i;
 try {
  itemCheck =eval(x);
   document.write("<A HREF=" + itemCheck + ">" + itemCheck + "<BR></A>"
);
   i++; 
 }
 catch (e) {
  itemCheck = false;
 }
} 


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