if(navigator.appVersion.charAt(0) >=3) {

var img = new Array();

img[01] = new Image();  img[01].src = "images/ico_m01.gif";

img[11] = new Image();  img[11].src = "images/ico_m02.gif";



img[21] = new Image();  img[21].src = "images/go_01.gif";

img[31] = new Image();  img[31].src = "images/go_02.gif";



img[41] = new Image();  img[41].src = "images/sup_a.gif";

img[51] = new Image();  img[51].src = "images/sup_b.gif";

}



function _in(nam,num) {

if(navigator.appVersion.charAt(0) >=3) {

 document.images[nam].src = img[num].src;

 }

}



function _out(nam,num) {

 document.images[nam].src = img[num].src;

 }