Setting focus on a form edit field with array name

Hello all,

As a beginner in Javascript I am trying to set focus to a form field
which name is an array.

The regular way to set focus I found: document.form.field.focus()

The problem is now that the field is not a string but an array. JS is a
bit confusing to me with its arrays, since you can print them out so easily.

Here is an excerpt from the source code (generated via PHP):
-----
<input type="hidden" name="varnames[]" value="pid" />
Enter Individual ID:</td>
<td class="optionbox"><input type="text" name="vars[pid]" id="pid"
value="I1" style="direction: ltr;" />
<input type="hidden" name="type[pid]" value="INDI" />&nbsp;<a
href="javascript: Find ID" onclick="iopenfind(document.setupreport.pid);
return false;">Find ID</a></td></tr>
<script language="JavaScript" type="text/javascript">
document.setupreport.vars['pid'].focus();
</script>
-----

This gives me the following message: Error: document.setupreport.vars
has no properties

My question is now: How do I set focus to the field vars[pid]?

Thanks,

RolandD

"RolandD" <rdalmulderno (AT) spamhotmail (DOT) com> kirjoitti
viestissä:431b0e5c$0$24126$ba620dc5 (AT) text (DOT) nova.planet.nl...

Hello all,

As a beginner in Javascript I am trying to set focus to a form field which
name is an array.

The regular way to set focus I found: document.form.field.focus()

The problem is now that the field is not a string but an array. JS is a
bit confusing to me with its arrays, since you can print them out so
easily.

Here is an excerpt from the source code (generated via PHP):
-----
input type="hidden" name="varnames[]" value="pid" /
Enter Individual ID:</td
td class="optionbox"><input type="text" name="vars[pid]" id="pid"
value="I1" style="direction: ltr;" /
input type="hidden" name="type[pid]" value="INDI" />&nbsp;<a
href="javascript: Find ID" onclick="iopenfind(document.setupreport.pid);
return false;">Find ID</a></td></tr
script language="JavaScript" type="text/javascript"
document.setupreport.vars['pid'].focus();
/script
-----

This gives me the following message: Error: document.setupreport.vars has
no properties

My question is now: How do I set focus to the field vars[pid]?

Use an id!

<input type="text" name="vars[pid]" id="vars_pid" value="INDI" />
in script:
document.getElementById("vars_pid").focus();

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