document.write('<a name=tornado></a><hr>');
document.write('<center><table width=90% border=0 cellpadding=0 cellspacing=0><tr><td>');
document.write('<h5 align=center><a href=tornadochart.html>Tornado Charts.</a></h5>');
document.write('<p align=center><a href=tornadochart.html><img src=../pix3/tornado2.gif width=392 height=238 border=0></a></p>');
document.write('<p>A tornado chart is a bar chart commonly used to compare characteristics of two populations.   A common use is to show the distribution of males and females among different age groups in the general population.  Males would be shown in bars stretching to the left of the central line; females reaching to the right.  This page shows how to make simple and more elaborate tornado charts.</p>');
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