function write_navigation(){

		document.write('<table width="155" cellspacing="0" cellpadding="0" border="0"><tr><td colspan="2">');
		document.write('<img src="/fz/endoscopy/uctn/images/endoscopy.gif"></td></tr>');
		document.write('<tr><td background="/fz/_images/higru2.gif" height="12" colspan="2"></td></tr>');
		document.write('<tr><td class="pfeil_e"></td><td class="navitem_e"><a class="nav_links" href="/fz/endoscopy/index.html"> Endoscopy Home</a></td></tr>');
		document.write('<tr><td class="line" colspan=2"></td></tr>');
		document.write('<tr><td class="pfeil_e"></td><td class="navitem_e"><a class="nav_links" href="/fz/endoscopy/uctn/index.html" class="abo">Endoscopy Cases & Techniques Library</a></td></tr>');		
		document.write('<tr><td class="line" colspan=2"></td></tr>');
		document.write('<tr><td class="tconnect" colspan="2"><a class="nav_links" href="http://www.thieme-connect.de/ejournals/toc/endoscopy" target="_blank"><img src="/fz/_images/tc_logo.jpg" border="0"></a></td></tr>');
		document.write('<tr><td colspan=2"></td></tr>');
		document.write('<tr><td class="line" colspan=2"></td></tr>');
		document.write('<tr><td class="pfeil_e"></td><td class="navitem_e"><a class="nav_links" href="/fz/endoscopy/autorenhinweise.html">For Authors</a></td></tr>');
		document.write('</table>');
}