<!--
        if (document.images) {  
            img1on = new Image();      
            img1on.src = "./image/button01b.gif"; 
            img2on = new Image();      
            img2on.src = "./image/button02b.gif"; 
            img3on = new Image();      
            img3on.src = "./image/button03b.gif"; 
            img4on = new Image();      
            img4on.src = "./image/button04b.gif"; 
            img5on = new Image();      
            img5on.src = "./image/button05b.gif"; 
            img6on = new Image();      
            img6on.src = "./image/button06b.gif"; 


            img1off = new Image(); 
            img1off.src = "./image/button01a.gif"; 
            img2off = new Image(); 
            img2off.src = "./image/button02a.gif"; 
            img3off = new Image(); 
            img3off.src = "./image/button03a.gif"; 
            img4off = new Image(); 
            img4off.src = "./image/button04a.gif"; 
            img5off = new Image(); 
            img5off.src = "./image/button05a.gif"; 
            img6off = new Image(); 
            img6off.src = "./image/button06a.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");
        }
}

function randomPhoto()
{
theURL = new Array();
ImageCount = 3;
num = Math.floor(Math.random() * ImageCount);
num1 = num+1;
document.write("<img src='./image/photo/photo"+num1+".jpg' alt='株式会社ユウシン'>");

}
-->
