// JavaScript Document
function $(tid)
{
   return document.getElementById(tid);
}
function init()
{
   var a, l;
   a = $("menu").getElementsByTagName("a");
   l = a.length;
   for(var i = 0; i < l ; i ++ )
   {

      a[i].onmouseover = function(i)
      {
         return function()
         {
            shows(i);
         }
      }
      (i);
      
   }


}
function shows(c)
{
   var _a, _l;
   _a = $('main2').childNodes;
   _l = _a.length;
   for(var n = 0; n < _l ; n ++ )
   {
      if(n == c)
      {
         _a[n].style.display = "block" ;

      }
      else
      {
         _a[n].style.display = "none";
      }
   }

}
window.onload = init;