function Affiche1() {
var divns6 = document.getElementsByTagName("div")
divns6['Layer1'].style.visibility = 'visible';
}

function Cacher1() {
var divns6 = document.getElementsByTagName("div")
divns6['Layer1'].style.visibility = 'hidden';
}


function Affiche2() {
var divns6 = document.getElementsByTagName("div")
divns6['Layer2'].style.visibility = 'visible';
}

function Cacher2() {
var divns6 = document.getElementsByTagName("div")
divns6['Layer2'].style.visibility = 'hidden';
}

function Affiche3() {
var divns6 = document.getElementsByTagName("div")
divns6['Layer3'].style.visibility = 'visible';
}

function Cacher3() {
var divns6 = document.getElementsByTagName("div")
divns6['Layer3'].style.visibility = 'hidden';
}

function Affiche4() {
var divns6 = document.getElementsByTagName("div")
divns6['Layer4'].style.visibility = 'visible';
}

function Cacher4() {
var divns6 = document.getElementsByTagName("div")
divns6['Layer4'].style.visibility = 'hidden';
}


function Affiche5() {
var divns6 = document.getElementsByTagName("div")
divns6['Layer5'].style.visibility = 'visible';
}

function Cacher5() {
var divns6 = document.getElementsByTagName("div")
divns6['Layer5'].style.visibility = 'hidden';
}