菜单想做成asp里面这样的效果，.net里面怎么写

<TD id="title1" onMouseOver="ChangeMenu(this,'m1_1.gif','menu1')" background="Images/m1_0a.gif"><A href="./index.asp" target="_top"><IMG id="image2" onMouseOver="nereidFade(this,100,20,20);" style="FILTER: alpha(opacity=0)" onMouseOut="nereidFade(this,01,7,20);" height="31" src="Images/m1_1a.gif" width="90" border="0" name="image1"></A></TD>
                      
  <TD id="title2" onMouseOver="ChangeMenu(this,'m2_1.gif','menu2')" background="Images/m2_0a.gif"><A href="Web-Case.asp"><IMG id="image2" onMouseOver="nereidFade(this,100,20,20);" style="FILTER: alpha(opacity=0)" onmouseout="nereidFade(this,01,7,20);" height="31" src="Images/m2_1a.gif" width="120" usemap="#Map" border="0" name="image1"></A></TD>
  
<TD id="title3" onMouseOver="ChangeMenu(this,'m3_1.gif','menu3')" background="Images/m3_0a.gif"><A href="ProductsList.asp"><IMG id="image2" onMouseOver="nereidFade(this,100,20,20);" style="FILTER: alpha(opacity=0)" onmouseout="nereidFade(this,01,7,20);" height="31" src="Images/m3_1a.gif" width="80" usemap="#Map" border="0" name="image1"></A></TD>

<TD id="title6" onMouseOver="ChangeMenu(this,'m6_1.gif','menu6')" background="Images/m6_0a.gif"><A href="Web-Dzjz.asp"><IMG id="image2" onMouseOver="nereidFade(this,100,20,20);" style="FILTER: alpha(opacity=0)" onmouseout="nereidFade(this,01,7,20);" height="31" src="Images/m6_1a.gif" width="80" usemap="#Map" border="0" name="image1"></A></TD>
                      
  <TD id="title10" onMouseOver="ChangeMenu(this,'m10_1.gif','menu10')" background="Images/m10_0a.gif"><A href="Web-Guest.asp"><IMG id="image2" onMouseOver="nereidFade(this,100,20,20);" style="FILTER: alpha(opacity=0)" onmouseout="nereidFade(this,01,7,20);" height="31" src="Images/m10_1a.gif" width="80" usemap="#Map" border="0" name="image1"></A></TD>
  
  <TD id="title4" onMouseOver="ChangeMenu(this,'m4_1.gif','menu4')" background="Images/m4_0a.gif"><A href="FeedbackAdd.asp"><IMG id="image2" onmouseover="nereidFade(this,100,20,20);" style="FILTER: alpha(opacity=0)" onmouseout="nereidFade(this,01,7,20);" height="31" src="Images/m4_1a.gif" width="80" usemap="#Map" border="0" name="image1"></A></TD>
                      
  <TD id="title5" onMouseOver="ChangeMenu(this,'m5_1.gif','menu5')" background="Images/m5_0a.gif"><A href="Err.asp" target="_blank"><IMG id="image2" onmouseover="nereidFade(this,100,20,20);" style="FILTER: alpha(opacity=0)" onmouseout="nereidFade(this,01,7,20);" height="31" src="Images/m5_1a.gif" width="80" usemap="#Map" border="0" name="image1"></A></TD>效果不知道怎么贴上来。 我晕~~~~