function setVisibilite(elem , count )
{
	var form = document.getElementById(elem);
	
	var etat = form.style.visibility;
	
	for( i = 1 ; i <= count ; i++)
	{
		if( elem != 'hidden-text-'+i)
		{
			document.getElementById('hidden-text-'+i).style.visibility	=	"hidden"	;
			document.getElementById('hidden-text-'+i).style.display		=	"none"		;
		}
	}
	
	if(etat=="hidden")
	{
		form.style.visibility	=	"visible"	;
		form.style.display		=	"block"		;
	}
	else
	{
		form.style.visibility	=	"hidden"	;
		form.style.display		=	"none"		;
	}
}