document.write('<table cellpadding="0" cellspacing="0" width="100" border="0">'
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+'<tr><td width="100"><img src="../../jpgs/navigation/main_nav_basics_on.jpg" width="96" height="46" border="0" hspace="0" vspace="0" name="nav_basics" alt="calculator basics" /><br /></td></tr>'
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+'<tr><td width="100"><img src="../../jpgs/navigation/main_nav_cube2.jpg" width="96" height="126" border="0" hspace="0" vspace="0" alt="" /><br /></td></tr>'
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+'<tr><td width="100"><img src="../../jpgs/navigation/main_nav_cube4.jpg" width="96" height="21" border="0" hspace="0" vspace="0" alt="" /><br /></td></tr>'
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