var img = new Array();

img[901] = new Image();  img[901].src="images/kaisha.gif";
img[902] = new Image();  img[902].src="images/kaisha_.gif";
img[903] = new Image();  img[903].src="images/seihin.gif";
img[904] = new Image();  img[904].src="images/seihin_.gif";
img[905] = new Image();  img[905].src="images/access.gif";
img[906] = new Image();  img[906].src="images/access_.gif";
img[907] = new Image();  img[907].src="images/top.gif";
img[908] = new Image();  img[908].src="images/top_.gif";
img[909] = new Image();  img[909].src="images/topi.gif";
img[910] = new Image();  img[910].src="images/topi_.gif";

img[801] = new Image();  img[801].src="images/eng.gif";
img[802] = new Image();  img[802].src="images/eng_.gif";
img[803] = new Image();  img[803].src="images/toiawase.gif";
img[804] = new Image();  img[804].src="images/toiawase_.gif";

img[701] = new Image();  img[701].src="images/more.gif";
img[702] = new Image();  img[702].src="images/more_.gif";
img[703] = new Image();  img[703].src="images/more2.gif";
img[704] = new Image();  img[704].src="images/more2_.gif";
img[705] = new Image();  img[705].src="images/more3.gif";
img[706] = new Image();  img[706].src="images/more3_.gif";

function change_image(nam,num) {
        if(navigator.appVersion.charAt(0)>= 3) {
                document.images[nam].src = img[num].src;
        }
}