var img = new Array();

img[901] = new Image();  img[901].src="images/menu_contact.gif";
img[902] = new Image();  img[902].src="images/menu_contact_.gif";

img[801] = new Image();  img[801].src="images/menu_glo.gif";
img[802] = new Image();  img[802].src="images/menu_glo_.gif";
img[803] = new Image();  img[803].src="images/menu_rec.gif";
img[804] = new Image();  img[804].src="images/menu_rec_.gif";

img[701] = new Image();  img[701].src="images/bana01.gif";
img[702] = new Image();  img[702].src="images/bana01_.gif";
img[703] = new Image();  img[703].src="images/bana02.gif";
img[704] = new Image();  img[704].src="images/bana02_.gif";



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