<!-- ボタンにマウスを合わせたら絵が変わるスクリプト（ブック用） -->
var ver4 = (navigator.appVersion.charAt(0) == "4");
var NN4  = ver4 && (navigator.appName == "Netscape");
var IE4 = ver4 && (navigator.appName.charAt(0) == "M");
var NN3 = ((navigator.appVersion.charAt(0) == "3") && (navigator.appName == "Netscape"));
if(NN3 || NN4 || IE4){ var imgM = new Array();
 imgM[0] = new Image();  imgM[0].src  = "book01/off.gif";
 imgM[1] = new Image();  imgM[1].src  = "book01/on.gif";
 imgM[2] = new Image();  imgM[2].src  = "book02/off.gif";
 imgM[3] = new Image();  imgM[3].src  = "book02/on.gif";
 imgM[4] = new Image();  imgM[4].src  = "book03/off.gif";
 imgM[5] = new Image();  imgM[5].src  = "book03/on.gif";
 imgM[6] = new Image();  imgM[6].src  = "book04/off.gif";
 imgM[7] = new Image();  imgM[7].src  = "book04/on.gif";
 imgM[8] = new Image();  imgM[8].src  = "book05/off.gif";
 imgM[9] = new Image();  imgM[9].src  = "book05/on.gif";
 imgM[10] = new Image(); imgM[10].src = "book06/off.gif";
 imgM[11] = new Image(); imgM[11].src = "book06/on.gif";
 imgM[12] = new Image(); imgM[12].src = "book07/off.gif";
 imgM[13] = new Image(); imgM[13].src = "book07/on.gif";
 imgM[14] = new Image(); imgM[14].src = "book08/off.gif";
 imgM[15] = new Image(); imgM[15].src = "book08/on.gif";
 imgM[16] = new Image(); imgM[16].src = "book09/off.gif";
 imgM[17] = new Image(); imgM[17].src = "book09/on.gif";
 imgM[18] = new Image(); imgM[18].src = "book10/off.gif";
 imgM[19] = new Image(); imgM[19].src = "book10/on.gif";
 imgM[20] = new Image(); imgM[20].src = "book11/off.gif";
 imgM[21] = new Image(); imgM[21].src = "book11/on.gif";
 imgM[22] = new Image(); imgM[22].src = "book12/off.gif";
 imgM[23] = new Image(); imgM[23].src = "book12/on.gif";
 imgM[24] = new Image(); imgM[24].src = "book13/off.gif";
 imgM[25] = new Image(); imgM[25].src = "book13/on.gif";
 imgM[26] = new Image(); imgM[26].src = "book14/off.gif";
 imgM[27] = new Image(); imgM[27].src = "book14/on.gif";
 imgM[28] = new Image(); imgM[28].src = "book15/off.gif";
 imgM[29] = new Image(); imgM[29].src = "book15/on.gif";
 imgM[30] = new Image(); imgM[30].src = "book16/off.gif";
 imgM[31] = new Image(); imgM[31].src = "book16/on.gif";
 imgM[32] = new Image(); imgM[32].src = "book17/off.gif";
 imgM[33] = new Image(); imgM[33].src = "book17/on.gif";
}
function Min(nam,num) {
 if(NN3 || NN4 || IE4) document.images[nam].src = imgM[num].src;}
function Mout(nam,num) {
 if(NN3 || NN4 || IE4) document.images[nam].src = imgM[num].src;}