// プルダウン


 function mainmenu(){  
   $(" #corpNavi li.dinamicNavi ").hover(
     function(){  
       $(this).find('ul:first').css({visibility: "visible",display: "none"}).show(0);  
       $(" #fieldNavi li,#corpNavi li.defaultNavi").find('ul:first').css({visibility: "hidden"});  
     },
     function(){  
       $(this).find('ul:first').css({visibility: "hidden"});  
       $(" #fieldNavi li,#corpNavi li.defaultNavi").find('ul:first').css({visibility: "visible",display: "none"}).show(0);  
     }
   );

   $(" #fieldNavi li ").hover(
     function(){  
       $(this).find('ul:first').css({visibility: "visible",display: "none"}).show(0);  
     },
     function(){  
       $(this).find('ul:first').css({visibility: "hidden"});  
     }
   );
 }  
   
    
    
 $(document).ready(
   function(){
     $(" #corpNavi li.defaultNavi ").find('ul:first').css({visibility: "visible",display: "none"}).show(0);
     mainmenu();  
   }
 );