<script type="text/javascript">        
    function hide() {            
        document.getElementById('td11').style.display = 'none'; }
</script>



<tr  id="td11">                           
<td>模板行</td>                           
<td>/  </td>                           
<td>/  </td>                           
<td>                                
<%                                    
double delay = 0;                                    
string timebegin1 = "04-26";                                    
string timeend1 = "06-25";                                    
string time1 = DateTime.Now.ToString("MM-dd");                                    
if ((timebegin1.PadLeft(5, '0')) > 0 && (timeend1.PadLeft(5, '0')) < 0)                                    
{                                       
delay = 30;                                   
}                                      
else 。。。。。。                                
%>                                
<%=Math.Round(delay, 2)%>                           
</td>  
</tr>
上面是主要的代码，我这边想达到的效果是：如果日期范围不在4-26和6-25号之间的话，要显示的的“模板行”调用相应代码给隐藏起来，请问该肿么写啊！

<%                                    
double delay = 0;                                    
string timebegin1 = "04-26";                                    
string timeend1 = "06-25";                                    
string time1 = DateTime.Now.ToString("MM-dd");                                    
bool tmp=((timebegin1.PadLeft(5, '0')) > 0 && (timeend1.PadLeft(5, '0')) < 0);

//两个tmp判断的地方按自己的需求修改
if(tmp){
%>
<tr  id="td11">                           
<td>模板行</td>                           
<td>/  </td>                           
<td>/  </td>                           
<td>                                
<%                           
if (tmp)                                    
{                                       
delay = 30;                                   
}                                      
else {}                              
%>                                
<%=Math.Round(delay, 2)%>                           
</td>  
</tr>
<%
}
%>