>How can I test if a text box exists on a web page?
>
>I am trying to set focus to a text box when my page loads. The ONLOAD calls this line.
>
> document.MYFORMNAME['txt_part'].focus();
>
>This works great!
>
>However, I build my form on the fly and sometimes my text box is not there. If it is not there, then the above line displays an error message.
>
>Is there a way to test if the text box exists before trying to set focus?
>
>Thanks,
>
>Jerryt

This is on the client side right?

Try this:

if (document.MYFORMNAME['txt_part']){
  document.MYFORMNAME['txt_part'].focus();
}

I may have missed the exact syntax (I'm just getting started on JS) but you get the idea.