function affiche(id) {
	  if (document.getElementById) {
		  document.getElementById(id).style.visibility="visible";
		  document.getElementById(id).style.display="block";
		} else if (document.all) {
		  document.all[id].style.visibility="visible";
		  document.all[id].style.display="block";
		} else if (document.layers) {
		  document.layers[id].visibility="visible";
		  document.layers[id].display="block";
		} 
    
}

function masque(id) {
	  if (document.getElementById) {
		  document.getElementById(id).style.visibility="hidden";
		  document.getElementById(id).style.display="none";
		} else if (document.all) {
		  document.all[id].style.visibility="hidden";
		  document.all[id].style.display="none";
		} else if (document.layers) {
		  document.layers[id].visibility="hidden";
		   document.layers[id].display="none";
		}
}
 
function aggrandi(id,hauteur) {
	  //document.getElementById(id).style.height=975+'px';
    if (document.getElementById) {
		  alert(document.getElementById(id).style.height);
      document.getElementById(id).style.height= 1375+'px';
       alert(document.getElementById(id).style.height);
		  
		} else if (document.all) {
		  document.all[id].style.height=document.all[id].style.height + hauteur;
		  
		} else if (document.layers) {
		  document.layers[id].height= document.layers[id].height + hauteur;
		   
		}
}