/**
 * Affiche ou masque le div pass? en argument (son id)
 * en fonction de son etat
 */
function showHideDiv( divObj ) {
	if ( divObj.style.display == "block" ) hideDiv ( divObj );
	else if (divObj.style.display == "" || divObj.style.display == "none" ) showDiv ( divObj );
}
function showHideDivById( divId ) {
	var	divObj = document.getElementById( divId );
	showHideDiv( divObj );
}

/**
 * Affiche l'objet pass? en argument
 */
function showDiv ( pObject ) { pObject.style.display = "block"; }
function showDivById ( divId ) { 
	var	divObj = document.getElementById( divId );
	showDiv( divObj );
}

/**
 * Masque l'objet pass? en argument
 */
function hideDiv ( pObject ) { pObject.style.display = "none"; }
function hideDivById ( divId ) { 
	var	divObj = document.getElementById( divId );
	hideDiv ( divObj );
}