function swapZindex(quiTop) {
  if (quiTop == 'corps') {
  	document.getElementById('menuflash').style.zIndex = 35;
  	document.getElementById('hom_droite').style.zIndex = 42;
  	document.getElementById('corps').style.zIndex = 40;
	}else{
  	document.getElementById('menuflash').style.zIndex = 42;
  	document.getElementById('hom_droite').style.zIndex = 40;
  	document.getElementById('corps').style.zIndex = 35;
	}
}