var imgo = new Array();
var imgu = new Array();
var i_u = new Array();
for(i=1; i<6; i++){
imgo[i] = "../../img/menu/icon"+ i +"_1.gif";
imgu[i] = "../../img/menu/icon"+ i +"_2.gif";
i_u[i] = new Image();
i_u[i].src = imgu[i];
}
function chImo(i) {
document.images["im"+i].src = imgo[i];
}
function chImu(i) {
document.images["im"+i].src = imgu[i];
}