if(document.images) {
 var imgs = new Array();
 imgs[0] = new Image();  imgs[0].src = "../images/nakamamenu/m01_def.gif"; 
 imgs[1] = new Image();  imgs[1].src = "../images/nakamamenu/m01_over.gif";
 imgs[2] = new Image();  imgs[2].src = "../images/nakamamenu/m02_def.gif";
 imgs[3] = new Image();  imgs[3].src = "../images/nakamamenu/m02_over.gif";
 imgs[4] = new Image();  imgs[4].src = "../images/nakamamenu/m03_def.gif";
 imgs[5] = new Image();  imgs[5].src = "../images/nakamamenu/m03_over.gif";
 imgs[6] = new Image();  imgs[6].src = "../images/nakamamenu/m04_def.gif";
 imgs[7] = new Image();  imgs[7].src = "../images/nakamamenu/m04_over.gif";
 imgs[8] = new Image();  imgs[8].src = "../images/nakamamenu/m05_def.gif";
 imgs[9] = new Image();  imgs[9].src = "../images/nakamamenu/m05_over.gif";
 imgs[10] = new Image();  imgs[10].src = "../images/nakamamenu/m06_def.gif";
 imgs[11] = new Image();  imgs[11].src = "../images/nakamamenu/m06_over.gif";
 imgs[12] = new Image();  imgs[12].src = "../images/nakamamenu/m07_def.gif";
 imgs[13] = new Image();  imgs[13].src = "../images/nakamamenu/m07_over.gif";
 imgs[14] = new Image();  imgs[14].src = "../images/nakamamenu/m08_def.gif";
 imgs[15] = new Image();  imgs[15].src = "../images/nakamamenu/m08_over.gif";
 imgs[16] = new Image();  imgs[16].src = "../images/nakamamenu/m09_def.gif";
 imgs[17] = new Image();  imgs[17].src = "../images/nakamamenu/m09_over.gif";
 imgs[18] = new Image();  imgs[18].src = "../images/nakamamenu/m10_def.gif";
 imgs[19] = new Image();  imgs[19].src = "../images/nakamamenu/m10_over.gif";
 imgs[20] = new Image();  imgs[20].src = "../images/nakamamenu/m11_def.gif";
 imgs[21] = new Image();  imgs[21].src = "../images/nakamamenu/m11_over.gif";
 imgs[22] = new Image();  imgs[22].src = "../images/nakamamenu/m12_def.gif";
 imgs[23] = new Image();  imgs[23].src = "../images/nakamamenu/m12_over.gif";
 imgs[24] = new Image();  imgs[24].src = "../images/nakamamenu/m13_def.gif";
 imgs[25] = new Image();  imgs[25].src = "../images/nakamamenu/m13_over.gif";
 imgs[26] = new Image();  imgs[26].src = "../images/nakamamenu/m14_def.gif";
 imgs[27] = new Image();  imgs[27].src = "../images/nakamamenu/m14_over.gif";
 imgs[28] = new Image();  imgs[28].src = "../images/nakamamenu/m15_def.gif";
 imgs[29] = new Image();  imgs[29].src = "../images/nakamamenu/m15_over.gif";
 imgs[30] = new Image();  imgs[30].src = "../images/nakamamenu/m07_over2.gif";
 imgs[31] = new Image();  imgs[31].src = "../images/nakamamenu/m10_over2.gif";
 imgs[32] = new Image();  imgs[32].src = "images/m01_def.gif";
 imgs[33] = new Image();  imgs[33].src = "images/m01_over.gif";
 imgs[34] = new Image();  imgs[34].src = "../images/nakamamenu/m13_over2.gif";
}

function chgimg(id, imgname) {
 if(document.images) {
  if(imgs[imgname]) {
    document.images[id].src = imgs[imgname].src;
  }
  else {
    document.images[id].src = imgname;
  }
 }
}