if (document.images) { 

// 雑学ナビゲーション
var img38on = new Image();
img38on.src = "../images/variety_navi01on.gif"; 
var img38off = new Image();
img38off.src = "../images/variety_navi01.gif";

var img39on = new Image();
img39on.src = "../images/variety_navi02on.gif"; 
var img39off = new Image();
img39off.src = "../images/variety_navi02.gif";

var img40on = new Image();
img40on.src = "../images/variety_navi03on.gif"; 
var img40off = new Image();
img40off.src = "../images/variety_navi03.gif";

var img41on = new Image();
img41on.src = "../images/variety_navi04on.gif"; 
var img41off = new Image();
img41off.src = "../images/variety_navi04.gif";

var img42on = new Image();
img42on.src = "../images/variety_navi05on.gif"; 
var img42off = new Image();
img42off.src = "../images/variety_navi05.gif";

var img43on = new Image();
img43on.src = "../images/variety_navi06on.gif"; 
var img43off = new Image();
img43off.src = "../images/variety_navi06.gif";

var img44on = new Image();
img44on.src = "../images/variety_navi07on.gif"; 
var img44off = new Image();
img44off.src = "../images/variety_navi07.gif";

var img45on = new Image();
img45on.src = "../images/variety_navi08on.gif"; 
var img45off = new Image();
img45off.src = "../images/variety_navi08.gif";

var img46on = new Image();
img46on.src = "../images/variety_navi09on.gif"; 
var img46off = new Image();
img46off.src = "../images/variety_navi09.gif";

var img47on = new Image();
img47on.src = "../images/variety_navi10on.gif"; 
var img47off = new Image();
img47off.src = "../images/variety_navi10.gif";



} 


function On(name) { 

if (document.images) { 
document.images[name].src = eval(name + 'on.src'); 
} 

} 


function Off(name) { 

if (document.images) { 
document.images[name].src = eval(name + 'off.src'); 
} 

}