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Checkboxes

The HTML markup for a checkbox logical input looks very similar to that for radio buttons. The only structural difference is the use of TYPE="checkbox" . Multiple selections are allowed however:

What operating systems have you used?
Macintosh
DOS
Windows
Windows95
OS/2
UNIX

The HTML to produce the above is:

<P>
What operating systems have you used?<BR>
<INPUT type="checkbox" name="os_used" value="mac">Macintosh<BR>
<INPUT type="checkbox" name="os_used" value="dos">DOS<BR>
<INPUT type="checkbox" name="os_used" value="win">Windows<BR>
<INPUT type="checkbox" name="os_used" value="win95">Windows95<BR>
<INPUT type="checkbox" name="os_used" value="os2">OS/2<BR>
<INPUT type="checkbox" name="os_used" value="unix">UNIX<BR>
</P>

how do multiple responses get transmitted if there's only one value allowed for a given name?

Let's assume that the user checks the boxes for Macintosh, DOS, and Windows95.



dave@cs.cf.ac.uk