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function mouseoverA(id){
document.getElementById('AA').style.backgroundImage='url(images/menu/competences_01_select.jpg)';

}
function mouseoutA(id){
document.getElementById('AA').style.backgroundImage='url(images/menu/competences_01.jpg)';
}

function mouseoverB(id){
document.getElementById('BB').style.backgroundImage='url(images/menu/competences_02_select.jpg)';

}
function mouseoutB(id){
document.getElementById('BB').style.backgroundImage='url(images/menu/competences_02.jpg)';
}

function mouseoverC(id){
document.getElementById('CC').style.backgroundImage='url(images/menu/competences_03_select.jpg)';

}
function mouseoutC(id){
document.getElementById('CC').style.backgroundImage='url(images/menu/competences_03.jpg)';
}

function mouseoverD(id){
document.getElementById('DD').style.backgroundImage='url(images/menu/competences_04_select.jpg)';

}
function mouseoutD(id){
document.getElementById('DD').style.backgroundImage='url(images/menu/competences_04.jpg)';
}

//-->