function showHeader()
{ 
document.write('<table width="100%" border="0" cellspacing="0" cellpadding="0">')
document.write('   <tr>')
document.write('      <td background="images/bg1.jpg">')
document.write('        <table width="100%" border="0" cellspacing="0" cellpadding="0" align="left">')
document.write('          <tr>') 
document.write('            <td width="443"><img src="images/title1.jpg" width="443" height="66" border="0"></td>')
document.write('            <td width="323" background="images/title2.jpg" valign="top" align="right">') 
document.write('              <table width="100%" border="0" 4 cellpadding="3" cellspacing="0" align="right">')
document.write('                <tr>')
document.write('                  <td width="73%" height="2" valign="top" align="right">')
document.write('                    <div align="left">&nbsp;&nbsp;<img src="images/mail.jpg" width="17" height="25" align="absmiddle"><a href="contact.htm" class="item3">contact</a>')
document.write('                      </div>')
document.write('                    <div align="left">&nbsp;&nbsp;<img src="images/link.gif"  align="absmiddle">&nbsp;<a href="http://www.nccu.edu.tw" class="item3" target="_blank">國立政治大學</a>')
document.write('                      </div>')
document.write('                 </td>')
document.write('                </tr>')
document.write('              </table>')
document.write('            </td>')
document.write('          </tr>') 
document.write('<tr >') 
document.write('            <td colspan="2" background="images/last_b.jpg" height=29> &nbsp;<td>')
document.write('          </tr>')     
document.write('        </table>')
document.write('      </td>')
document.write('   </tr>')
document.write('   </table>')
}