var head="display:''"
function doit(header){
var head=header.style
if (head.display=="none")
head.display=""
else
head.display="none"
}

if (document.images) {            
img0on = new Image();   // マウスが触れたときに表示される
img0on.src = "../image/itobenstyle2.gif"; 
img1on = new Image();
img1on.src = "../image/1b.gif";  
img2on = new Image();
img2on.src = "../image/2b.gif";
img3on = new Image();
img3on.src = "../image/3b.gif";
img4on = new Image();
img4on.src = "../image/4b.gif";
img5on = new Image(); 
img5on.src = "../image/5b.gif"; 
img6on = new Image();
img6on.src = "../image/6b.gif";  
img7on = new Image();
img7on.src = "../image/7b.gif";
img8on = new Image();
img8on.src = "../image/8b.gif";
img9on = new Image();
img9on.src = "../image/9b.gif";
img10on = new Image();
img10on.src = "../image/10b.gif";


img0off = new Image();          // マウスを離したときに表示される
img0off.src = "../image/itobenstyle1.gif"; 
img1off = new Image();          
img1off.src = "../image/1a.gif";
img2off = new Image();
img2off.src = "../image/2a.gif";
img3off = new Image();
img3off.src = "../image/3a.gif";
img4off = new Image();
img4off.src = "../image/4a.gif";
img5off = new Image(); 
img5off.src = "../image/5a.gif"; 
img6off = new Image();          
img6off.src = "../image/6a.gif";
img7off = new Image();
img7off.src = "../image/7a.gif";
img8off = new Image();
img8off.src = "../image/8a.gif";
img9off = new Image();
img9off.src = "../image/9a.gif";
img10off = new Image();
img10off.src = "../image/10a.gif";


}

function imgOn(imgName) {        if (document.images) {
document[imgName].src = eval(imgName + "on.src");
            }}
                        
function imgOff(imgName) {        if (document.images) {
document[imgName].src = eval(imgName + "off.src");
            }}