Giving focus to an element whose name contains a period

[Steve Swift]

I'm trying to give the focus to a field defined with:
<INPUT TYPE=TEXT NAME=P.LAST_NAME>

and I'm having a spot of bother with that "." in the field's name.

I thought that document.FormName.P\.LAST_NAME.focus() should do the job,
but it doesn't. I've tried a number of variations, with no success, so far.

I could recode my application to use a character other than "." in that
element name (yes, I was asking for trouble) but I'd prefer to know if
there is a way to give focus to such a field.

 

[Martin Honnen]

I'm trying to give the focus to a field defined with:
<INPUT TYPE=TEXT NAME=P.LAST_NAME>

and I'm having a spot of bother with that "." in the field's name.

Generally bracket notation in JavaScript allows you to specify a
property name as an expression yielding a string e.g.
document.forms['form.name'].elements['P.LAST_NAME']

 

[Steve Swift]

Generally bracket notation in JavaScript allows you to specify a

property name as an expression yielding a string e.g.
document.forms['form.name'].elements['P.LAST_NAME']

Just what I needed, thank you!

 

[Matt Kruse]

I'm trying to give the focus to a field defined with:
<INPUT TYPE=TEXT NAME=P.LAST_NAME>
and I'm having a spot of bother with that "." in the field's name.

http://www.javascripttoolbox.com/bestpractices/#squarebracket

 

[Steve Swift]

http://www.javascripttoolbox.com/bestpractices/#squarebracket

That's a very handy reference - thanks - I've bookmarked it!