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<HTML>
 <HEAD>
  <TITLE> 연습용 </TITLE>
 </HEAD>
 <script>
  function ff(urlx){
   document.location=urlx;
  }
  function f2(tid){
    var obj = document.getElementById(tid);
       obj.style.backgroundColor='#ffaaaa';
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<BODY bgcolor=#99ffff>
<TABLE border=1>
<TR>
 <td id=t1 onclick="ff('http://www.google.co.kr');" onmouseover="f2('t1')" onmouseout="f3('t1')" >구글로 가기..</TD>
 <td id=t2 onclick="ff('http://www.yahoo.co.kr');" onmouseover="f2('t2')" onmouseout="f3('t2')" >야후</TD>
 <td id=t3 onclick="ff('http://');" onmouseover="f2('t3')" onmouseout="f3('t3')" >c</TD>
 <td id=t4 onclick="ff('http://');" onmouseover="f2('t4')" onmouseout="f3('t4')" >d</TD>
</TR>
<TR>
 <td id=t5 onclick="ff('http://j.finfra.com/lec');" onmouseover="f2('t5')" onmouseout="f3('t5')" >나현재 강의홈</TD>
 <td id=t6 onclick="ff('http://j.finfra.com');" onmouseover="f2('t6')" onmouseout="f3('t6')" >나현재 블로그</TD>
 <td id=t7 onclick="ff('http://');" onmouseover="f2('t7')" onmouseout="f3('t7')" ></TD>
 <td id=t8 onclick="ff('http://');" onmouseover="f2('t8')" onmouseout="f3('t8')" ></TD>
</TR>

</TABLE>
</form>


 </BODY>
</HTML>