headerb=
'<table width="100%" border="0" cellspacing="0" cellpadding="0" >'+
'<tr>'+
'<td bgcolor="#000000">'+
'<img src="http://www.courseworld.com/cbc/topnav_bk.gif" width=15 height=25 alt="spacing" border="0">'+
'<a href="http://www.courseworld.com/index1.html"><img src="http://www.courseworld.com/cbc/topnav_home.gif" width=65 height=25 alt="Home to Course World" border="0"></a>'+
'<a  href="http://www.courseworld.com/index1.html" onMouseOut="FW_startTimeout();" onMouseOver="window.FW_showMenu(window.fw_menu_0,82,75);" >'+
'<img src="http://www.courseworld.com/cbc/topnav_radio.gif" width=60 height=25 alt="Subjects" border="0"></a>'+
'<a  href="http://www.courseworld.com/ocean/slides1.html" onMouseOut="FW_startTimeout();" onMouseOver="window.FW_showMenu(window.fw_menu_1,152,75);" >'+
'<img src="http://www.courseworld.com/cbc/topnav_sl.gif" width=72 height=25 alt="Slide Shows" border="0"></a>'+
'<a  href="http://www.courseworld.com/intro.html" onMouseOut="FW_startTimeout();" onMouseOver="window.FW_showMenu(window.fw_menu_3,275,75);" >'+
'<img src="http://www.courseworld.com/cbc/topnav_flash.gif" width=60 height=25 alt="Flash Intro" border="0"></a>'+
'<a  href="http://www.courseworld.com/ocean/pdf.html" onMouseOut="FW_startTimeout();" onMouseOver="window.FW_showMenu(window.fw_menu_5,353,75);" >'+
'<img src="http://www.courseworld.com/cbc/topnav_dl.gif" width=112 height=25 alt="Downloads" border="0"></a>'+
'<a  href="http://www.courseworld.com/search.html" onMouseOut="FW_startTimeout();" onMouseOver="window.FW_showMenu(window.fw_menu_4,453,75);" >'+
'<img src="http://www.courseworld.com/cbc/topnav_search.gif" width=60 height=25 alt="Search" border="0"></a>'+
'<a  href="http://www.courseworld.com/links/sitemap/sitemap.html" onMouseOut="FW_startTimeout();" onMouseOver="window.FW_showMenu(window.fw_menu_6,553,75);" >'+
'<img src="cbc/topnav_smap1.gif" width=91 height=25 alt="Site Map for Courseworld" border="0"></a>'+
'<a  href="links/linktome1.html"onMouseOut="FW_startTimeout();" onMouseOver="window.FW_showMenu(window.fw_menu_7,653,75);" >'+
'<img src="cbc/topnav_link.gif" width=60 height=25 alt="Add link to Courseworld" border="0"></a>'+
'</td>'+
     '</tr>'+
      '<tr>'+
        '<td colspan="2" bgcolor="#cacaca">'+
     '<img src="http://www.courseworld.com/cbc/spacer.gif" width="10" height="10" vspace="0" hspace="0" border="0" alt="blank"></td>'+
      '</tr>'+
 '</table>'