var a="";
function ent_y(a){
   theValue1=a;
   document.cookie="ent_s"+"="+escape(theValue1);

   top.location.href ='http://www.ryowa.net/entry.html';
}

if (document.images) { 

var img1on = new Image();
img1on.src = "image/mb-home-ov.jpg"; 
var img1off = new Image();
img1off.src = "image/mb-home.jpg"; 

var img2on = new Image();
img2on.src = "image/mb-comp-ov.jpg"; 
var img2off = new Image();
img2off.src = "image/mb-comp.jpg"; 

var img3on = new Image();
img3on.src = "image/mb-recr-ov.jpg"; 
var img3off = new Image();
img3off.src = "image/mb-recr.jpg"; 

var img4on = new Image();
img4on.src = "image/mb-faq-ov.jpg"; 
var img4off = new Image();
img4off.src = "image/mb-faq.jpg"; 

var img5on = new Image();
img5on.src = "image/mb-map-ov.jpg"; 
var img5off = new Image();
img5off.src = "image/mb-map.jpg"; 

var img6on = new Image();
img6on.src = "image/mb-ask-ov.jpg"; 
var img6off = new Image();
img6off.src = "image/mb-ask.jpg"; 

} 

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'); 
} 

}