I was runing the w3.org validator on my survey, and was getting errors because of html like this:

input class="text" type="text" size="10px" name="56216X139X792" id="answer56216X139X792" value="12" onkeypress="return goodchars(event,'0123456789.')" onchange='checkconditions(this.value, this.name, this.type)'maxlength="3" />

(Notice the missing space between "...this.type)'" and "maxlength").

I edited line 3731 of qanda.php from this:
. "maxlength=\"$maxsize\" />\n\t$suffix\n</p>\n"
to this:
. " maxlength=\"$maxsize\" />\n\t$suffix\n</p>\n"

and the document now validates.

-Ista