function MainMenu(menu){
if (menu=="menu0101"){
       location.href="../01_aboutus/1_01.php";
  }else if(menu=="menu0102"){
      location.href="../01_aboutus/1_02.php";
/*  }else if(menu=="menu0103"){
      location.href="../01_aboutus/1_03.php";
  }else if(menu=="menu0104"){
      location.href="../01_aboutus/1_04.php";
*/
  
  
  }else if(menu=="menu0201"){
      location.href="../02_catering/coporate_catering.php";
  }else if(menu=="menu0202"){
      location.href="../02_catering/party_catering.php";
  }else if(menu=="menu0203"){
      location.href="../02_catering/asian_wedding_catering.php";      
  }else if(menu=="menu0204"){
      location.href="../02_catering/2_04.php";      
  
  }else if(menu=="menu0301"){
      location.href="../03_lunchbox/3_01_menu.php";
 }else if(menu=="menu0302"){
      location.href="../03_lunchbox/3_02.php";      
 }else if(menu=="menu0303"){
      location.href="../03_lunchbox/delivery_policy.php";      
  
  }else if(menu=="menu0401"){
      location.href="../04_class/sushi_class.php";
  }else if(menu=="menu0402"){
      location.href="../04_class/4_02.php";
  
  }else if(menu=="menu0501"){
      location.href="../05_testimonial/5_01.php";
  }else if(menu=="menu0502"){
      location.href="../05_testimonial/5_02.php";
  }else if(menu=="menu0503"){
      location.href="../05_testimonial/5_03.php";
  
  }else if(menu=="menu0601"){
      location.href="../06_contactus/6_01.php";
  }else if(menu=="menu0602"){
      location.href="../06_contactus/6_02.php";
  }else if(menu=="menu0603"){
      location.href="../06_contactus/6_03.php";
      
  }else if(menu=="mail"){
      location.href="mailto:sushidori@greenfishcatering.com";
  }
}