document.write("<tr>")
document.write("<td width='50%' style='border-top: 10px solid #dedede;border-left: 3px solid #dedede' valign='top'>")
document.write("<img border='0' src='images/conner1.gif' width='10' height='10'></td>")
document.write("<td width='50%' style='border-top:#dedede 10px solid;border-right:#dedede 3px solid' valign='top'>")
document.write("<p align='right'><img border='0' src='images/conner2.gif' width='10' height='10'></p></td></tr><tr>")
document.write("<td width='100%' colspan='2' style='border-right: 3px solid #dedede;border-left: 3px solid #dedede'>")
document.write("<table  border='0' cellpadding='2' cellspacing='0' width='100%'>")
document.write("<tr><td align='center'>　<b><font face='隶书' color='#C00000' size='2'>网络管理</font></b></td></tr>")
document.write("<tr><td>　<img border='0' src='images/dian.gif' width='21' height='14'><a href='index0500.htm'>前言</a></td></tr>")
document.write("<tr><td>　<img border='0' src='images/dian.gif' width='21' height='14'><a href='index0501.htm'>传统局域网管理</a></td></tr>")
document.write("<tr><td>　<img border='0' src='images/dian.gif' width='21' height='14'><a href='index0502.htm'>网络管理功能</a></td></tr>")
document.write("<tr><td>　<img border='0' src='images/dian.gif' width='21' height='14'><a href='index0503.htm'>网络管理协议</a></td></tr>")
document.write("<tr><td>　<img border='0' src='images/dian.gif' width='21' height='14'><a href='index0504.htm'>简单网络管理协议</a></td></tr>")
document.write("<tr><td>　<img border='0' src='images/dian.gif' width='21' height='14'><a href='index0505.htm'>网络管理系统</a></td></tr>")
document.write("<tr><td>　<img border='0' src='images/dian.gif' width='21' height='14'><a href='index0506.htm'>网络管理和维护</a></td></tr>")
document.write("<tr><td>　<img border='0' src='images/dian.gif' width='21' height='14'><a href='index0507.htm'>本部分习题</a></td></tr>")
document.write("<tr><td align='center'>　<b><font face='隶书' color='#C00000' size='2'>网络安全</font></b></td></tr>")
document.write("<tr><td>　<img border='0' src='images/dian.gif' width='21' height='14'><a href='index0600.htm'>网络安全的重要性</a></td></tr>")
document.write("<tr><td>　<img border='0' src='images/dian.gif' width='21' height='14'><a href='index0601.htm'>机房安全</a></td></tr>")
document.write("<tr><td>　<img border='0' src='images/dian.gif' width='21' height='14'><a href='index0602.htm'>网络病毒与防治</a></td></tr>")
document.write("<tr><td>　<img border='0' src='images/dian.gif' width='21' height='14'><a href='index0603.htm'>网络黑客与防范措施</a></td></tr>")
document.write("<tr><td>　<img border='0' src='images/dian.gif' width='21' height='14'><a href='index0604.htm'>防火墙技术</a></td></tr>")
document.write("<tr><td>　<img border='0' src='images/dian.gif' width='21' height='14'><a href='index0605.htm'>其它安全技术</a></td></tr>")
document.write("<tr><td>　<img border='0' src='images/dian.gif' width='21' height='14'><a href='index0606.htm'>本部分习题</a></td></tr>")
document.write("<tr><td align='center'><a href='index01.htm'>　<b><font face='隶书' color='#C00000' size='2'>网络基础知识</font></b></a></td></tr>")

document.write("<tr><td align='center'><a href='../index1.htm'><img border='0' src='images/00_back1.gif' alt='返回首页' width='100' height='60'></a></td></tr>")
document.write("</table></td></tr><tr>")
document.write("<td width='100%' style='border-left: 3px solid #dedede;border-right: 3px solid #dedede; border-bottom: 3px solid #dedede' valign='bottom' colspan='2'>")             
document.write("　</td></tr>")