var imgM = new Array();
        imgM[0] = new Image();  imgM[0].src = "image/nv_01a.gif";
        imgM[1] = new Image();  imgM[1].src = "image/nv_01b.gif";
        imgM[2] = new Image();  imgM[2].src = "image/nv_02a.gif";
        imgM[3] = new Image();  imgM[3].src = "image/nv_02b.gif";
        imgM[4] = new Image();  imgM[4].src = "image/nv_03a.gif";
        imgM[5] = new Image();  imgM[5].src = "image/nv_03b.gif";
        imgM[6] = new Image();  imgM[6].src = "image/nv_04a.gif";
        imgM[7] = new Image();  imgM[7].src = "image/nv_04b.gif";
        imgM[28] = new Image();  imgM[28].src = "image/nv_15a.gif";
        imgM[29] = new Image();  imgM[29].src = "image/nv_15b.gif";
        imgM[8] = new Image();  imgM[8].src = "image/nv_05a.gif";
        imgM[9] = new Image();  imgM[9].src = "image/nv_05b.gif";
        imgM[10] = new Image();  imgM[10].src = "image/nv_06a.gif";
        imgM[11] = new Image();  imgM[11].src = "image/nv_06b.gif";
        imgM[12] = new Image();  imgM[12].src = "image/nv_07a.gif";
        imgM[13] = new Image();  imgM[13].src = "image/nv_07b.gif";
        imgM[14] = new Image();  imgM[14].src = "image/nv_08a.gif";
        imgM[15] = new Image();  imgM[15].src = "image/nv_08b.gif";
        imgM[16] = new Image();  imgM[16].src = "image/nv_09a.gif";
        imgM[17] = new Image();  imgM[17].src = "image/nv_09b.gif";
        imgM[30] = new Image();  imgM[30].src = "image/nv_16a.gif";
        imgM[31] = new Image();  imgM[31].src = "image/nv_16b.gif";
        imgM[18] = new Image();  imgM[18].src = "image/nv_10a.gif";
        imgM[19] = new Image();  imgM[19].src = "image/nv_10b.gif";
        imgM[20] = new Image();  imgM[20].src = "image/nv_11a.gif";
        imgM[21] = new Image();  imgM[21].src = "image/nv_11b.gif";
        imgM[22] = new Image();  imgM[22].src = "image/nv_12a.gif";
        imgM[23] = new Image();  imgM[23].src = "image/nv_12b.gif";
        imgM[24] = new Image();  imgM[24].src = "image/nv_13a.gif";
        imgM[25] = new Image();  imgM[25].src = "image/nv_13b.gif";
        imgM[26] = new Image();  imgM[26].src = "image/nv_14a.gif";
        imgM[27] = new Image();  imgM[27].src = "image/nv_14b.gif";
        imgM[32] = new Image();  imgM[32].src = "image/nv_17a.gif";
        imgM[33] = new Image();  imgM[33].src = "image/nv_17b.gif";
        imgM[34] = new Image();  imgM[34].src = "image/nv_18a.gif";
        imgM[35] = new Image();  imgM[35].src = "image/nv_18b.gif";
        imgM[36] = new Image();  imgM[36].src = "image/nv_19a.gif";
        imgM[37] = new Image();  imgM[37].src = "image/nv_19b.gif";
        imgM[38] = new Image();  imgM[38].src = "image/nv_20a.gif";
        imgM[39] = new Image();  imgM[39].src = "image/nv_20b.gif";
        imgM[40] = new Image();  imgM[40].src = "image/nv_21a.gif";
        imgM[41] = new Image();  imgM[41].src = "image/nv_21b.gif";

        function Min(nam,num) {
         document.images[nam].src = imgM[num].src;
}

function Mout(nam,num) {
         document.images[nam].src = imgM[num].src;
}