<HTML><BODY style="word-wrap: break-word; -khtml-nbsp-mode: space; -khtml-line-break: after-white-space; "><BR><DIV><DIV>On Jan 23, 2008, at 11:39 AM, Siemova wrote:</DIV><BR class="Apple-interchange-newline"><BLOCKQUOTE type="cite"><SPAN class="Apple-style-span" style="border-collapse: separate; border-spacing: 0px 0px; color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; text-align: auto; -khtml-text-decorations-in-effect: none; text-indent: 0px; -apple-text-size-adjust: auto; text-transform: none; orphans: 2; white-space: normal; widows: 2; word-spacing: 0px; ">Very easily:<BR><BR><DIV style="margin-left: 40px;">if start is not specified<BR>if not reverse<BR>start = 1<BR>else<BR>start = number of items * step<SPAN class="Apple-converted-space"> </SPAN><BR></DIV><BR class="Apple-interchange-newline"></SPAN></BLOCKQUOTE></DIV><BR><DIV>It's not that simple -- the last line should be</DIV><DIV><BR class="khtml-block-placeholder"></DIV><DIV>start = 1 + ( (number of items - 1) * step)</DIV><DIV><BR class="khtml-block-placeholder"></DIV><DIV>if it's assumed that the last item of the list is numbered one by default. </DIV><DIV><BR class="khtml-block-placeholder"></DIV><BR><DIV> <SPAN class="Apple-style-span" style="border-collapse: separate; border-spacing: 0px 0px; color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; text-align: auto; -khtml-text-decorations-in-effect: none; text-indent: 0px; -apple-text-size-adjust: auto; text-transform: none; orphans: 2; white-space: normal; widows: 2; word-spacing: 0px; "><SPAN class="Apple-style-span" style="border-collapse: separate; border-spacing: 0px 0px; color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; text-align: auto; -khtml-text-decorations-in-effect: none; text-indent: 0px; -apple-text-size-adjust: auto; text-transform: none; orphans: 2; white-space: normal; widows: 2; word-spacing: 0px; "><DIV>_____</DIV><DIV>David Walbert</DIV><DIV>LEARN NC, UNC-Chapel Hill</DIV><DIV><A href="mailto:dwalbert@learnnc.org">dwalbert@learnnc.org</A></DIV><DIV><BR class="khtml-block-placeholder"></DIV><BR class="Apple-interchange-newline"></SPAN></SPAN> </DIV><BR></BODY></HTML>