imgHom0 = new Image(128,38)
imgHom0.src = "menu_hom0.jpg"
imgHom1 = new Image(128,38)
imgHom1.src = "menu_hom1.jpg"
imgRes0 = new Image(128,38)
imgRes0.src = "menu_res0.jpg"
imgRes1 = new Image(128,38)
imgRes1.src = "menu_res1.jpg"
imgExp0 = new Image(128,38)
imgExp0.src = "menu_exp0.jpg"
imgExp1 = new Image(128,38)
imgExp1.src = "menu_exp1.jpg"
imgEdu0 = new Image(128,38)
imgEdu0.src = "menu_edu0.jpg"
imgEdu1 = new Image(128,38)
imgEdu1.src = "menu_edu1.jpg"
imgPro0 = new Image(128,38)
imgPro0.src = "menu_pro0.jpg"
imgPro1 = new Image(128,38)
imgPro1.src = "menu_pro1.jpg"
imgLin0 = new Image(128,38)
imgLin0.src = "menu_lin0.jpg"
imgLin1 = new Image(128,38)
imgLin1.src = "menu_lin1.jpg"

function chImg(i,ref) {
  document.images[i].src = ref.src
}