function changeBody(index){
switch(index){
case 1:{
document.getElementById("iDBody1").style.display = "";
document.getElementById("iDBody2").style.display = "none";
document.getElementById("iDBody3").style.display = "none";
}
case 2:{
document.getElementById("iDBody1").style.display = "none";
document.getElementById("iDBody2").style.display = "";
case 3:{
document.getElementById("iDBody3").style.display = "";
function changeBody(index){
switch(index){
case 1:{
document.getElementById("iDBody1").style.display = "";
document.getElementById("iDBody2").style.display = "none";
document.getElementById("iDBody3").style.display = "none";
}
case 2:{
document.getElementById("iDBody1").style.display = "none";
document.getElementById("iDBody2").style.display = "";
document.getElementById("iDBody3").style.display = "none";
}
case 3:{
document.getElementById("iDBody1").style.display = "none";
document.getElementById("iDBody2").style.display = "none";
document.getElementById("iDBody3").style.display = "";
}
}
}