// JavaScript Document

function dispImage(name)
{
	document.img_ch.src=name;
}
<!--
     // URL???
   var imglist = [
      [ "../images/top/wine/today0001.jpg", "シャトーデストー2003", "index.php?main_page=page&id=1&chapter=1" ],
      [ "../images/top/wine/today0002.jpg", "シャトールパップ2005", "index.php?main_page=page&id=2&chapter=1" ],
	  [ "../images/top/wine/today0003.jpg", "シャトーラピルエット2003", "index.php?main_page=page&id=3&chapter=1" ]
   ];

   // 1??
   function RandomImageLink() {
      // ??
      var selectnum = Math.floor(Math.random() * imglist.length);
       // ??
      var output = 
         '<a href="' + imglist[selectnum][2] + '">' +
         '<img src="' + imglist[selectnum][0] + '"' +

         imglist[selectnum][1] + '</a>';
      // HTML
      document.write(output);
   }
// -->


// JavaScript Document

function dispImage2(name)
{
	document.img_ch.src=name;
}
<!--
     // URL???
   var imglist2 = [
      [ "../images/top/wine/today_f0001.jpg", "シャトーデストー2003", "index.php?main_page=page&id=1&chapter=1" ],
      [ "../images/top/wine/today_f0002.jpg", "シャトールパップ2005", "index.php?main_page=page&id=2&chapter=1" ],
	  [ "../images/top/wine/today_f0003.jpg", "シャトーラピルエット2003", "index.php?main_page=page&id=3&chapter=1" ]
   ];

   // 1??
   function RandomImageLink2() {
      // ??
      var selectnum = Math.floor(Math.random() * imglist2.length);
       // ??
      var output = 
         '<a href="' + imglist2[selectnum][2] + '">' +
         '<img src="' + imglist2[selectnum][0] + '"' +

         imglist2[selectnum][1] + '</a>';
      // HTML
      document.write(output);
   }
// -->