function affichage(num){		
		
		 if(document.getElementById(num).style.display == 'none'){
            document.getElementById(num).style.display = 'block';
        }
        else{
            document.getElementById(num).style.display = 'none';
        }		
		
		return true;
}


function CorrigeHauteur(){
	var ind1= 'fd';	
	var ind2= 'hc';
	
	var obj = document.getElementById(ind1);
	var h_cell = obj.offsetHeight;
	
	h_cell=h_cell-900; 
	
	document.getElementById(ind2).style.height=h_cell+"px";
	
}