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function base() {
document.body.style.backgroundImage="url('../../../image/brick003.jpg')"
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function prova() {
document.body.style.backgroundImage="url('paper022.jpg')"
}
function prova1() {
document.body.style.backgroundImage="url('paper023.jpg')"
}
function prova2() {
document.body.style.backgroundImage="url('paper024.jpg')"
}
// -->