function goto(mmain) {
  //alert(mmain);
  if (mmain==01) { window.open("smartpen.php","_self"); }
  if (mmain==02) { window.open("http://www.dahhsin.com.tw/main.php","_self"); }
  if (mmain==100) { window.open("smartpen.php","_self"); }  
   
  //if (mmain==101) { window.open("myvoice_1.php","_self"); }  
  //if (mmain==102) { window.open("myvoice_3.php","_self"); }  
  //if (mmain==103) { window.open("myvoice_4.php","_self"); }  
   
  //if (mmain==201) { window.open("italk_1.php","_self"); }  
  //if (mmain==202) { window.open("italk_3.php","_self"); }  
  //if (mmain==203) { window.open("italk_4.php","_self"); }  
   
  //if (mmain==301) { window.open("echotalk_1.php","_self"); }  
  //if (mmain==302) { window.open("echotalk_3.php","_self"); }  
  //if (mmain==303) { window.open("echotalk_4.php","_self"); } 
   
   //if (mmain==401) { window.open("echotalk_4.php","_self"); } 
   
   //if (mmain==501) { window.open("prolist.php?ca=1&page=1&act=y","_self"); }
   
   if (mmain==601) { window.open("smartpen_3_a.php","_self"); }  
   if (mmain==602) { window.open("smartpen_3_b.php","_self"); }
   
}