var path = "/";
var img = new Array();
img[901] = new Image();  img[901].src=path + "images/menu_hom.gif";
img[902] = new Image();  img[902].src=path + "images/menu_hom_.gif";
img[903] = new Image();  img[903].src=path + "images/menu_unt.gif";
img[904] = new Image();  img[904].src=path + "images/menu_unt_.gif";
img[905] = new Image();  img[905].src=path + "images/menu_int.gif";
img[906] = new Image();  img[906].src=path + "images/menu_int_.gif";
img[907] = new Image();  img[907].src=path + "images/menu_stu.gif";
img[908] = new Image();  img[908].src=path + "images/menu_stu_.gif";
img[909] = new Image();  img[909].src=path + "images/menu_cop.gif";
img[910] = new Image();  img[910].src=path + "images/menu_cop_.gif";
img[911] = new Image();  img[911].src=path + "images/menu_fdsd.gif";
img[912] = new Image();  img[912].src=path + "images/menu_fdsd_.gif";
img[913] = new Image();  img[913].src=path + "images/menu_cty.gif";
img[914] = new Image();  img[914].src=path + "images/menu_cty_.gif";
img[915] = new Image();  img[915].src=path + "images/menu_exc.gif";
img[916] = new Image();  img[916].src=path + "images/menu_exc_.gif";
img[917] = new Image();  img[917].src=path + "images/menu_gp.gif";
img[918] = new Image();  img[918].src=path + "images/menu_gp_.gif";

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