function Showmenu1(n,m)
{
 if(n==1)
 {
  eval("time_select").style.display="";
  }else if(n==2)
 {
 eval("time_select").style.display="none";
 switch(m){  
  case   1:document.getElementById("times").innerHTML="一天内"; 
            document.form.timer.value="1";
            break;
  case   3:document.getElementById("times").innerHTML="三天内"; 
            document.form.timer.value="3";
            break;
  case   6:document.getElementById("times").innerHTML="一周内";
            document.form.timer.value="6";
            break;
  case   12:document.getElementById("times").innerHTML="两周内"; 
            document.form.timer.value="12";
            break; 
  case   30:document.getElementById("times").innerHTML="一个月内"; 
            document.form.timer.value="30";
            break;
  case   60:document.getElementById("times").innerHTML="两个月内"; 
            document.form.timer.value="60";
            break;
  } 
 }
}