function init_defilv(id)
{
	act_phase[id] = 1;
	nb_phases[id] = Math.ceil(nb_bloc[id]/nb_bloc_ctn[id])
	for(var i=1;i<=nb_bloc[id];i++)
	{
		$(id+'_'+i).style.top = ((((i+1)%nb_bloc_ctn[id])*(size_bloc[id]+mrg[id])))+'px';//+mrg[id]
		if(i>nb_bloc_ctn[id])
		{
			set_opacity(id+'_'+i,0,1);
		}
	}
	return true;
}
function defilv_back(id)
{
	new_effect_rep(100,0,'set_opacity("'+id+'_'+((act_phase[id]*nb_bloc_ctn[id])-1)+'",{vl},1);','{vl}',time_defil[id],12);
	if((act_phase[id]*nb_bloc_ctn[id])<=nb_bloc[id])
	{
		new_effect_rep(100,0,'set_opacity("'+id+'_'+(act_phase[id]*nb_bloc_ctn[id])+'",{vl},1);','{vl}',time_defil[id],12);
	}
	act_phase[id] = act_phase[id]-1;
	if(act_phase[id]<1)
	{
		act_phase[id]=nb_phases[id];
	}
	new_effect_rep(0,100,'set_opacity("'+id+'_'+((act_phase[id]*nb_bloc_ctn[id])-1)+'",{vl},1);','{vl}',time_defil[id],12);
	if((act_phase[id]*nb_bloc_ctn[id])<=nb_bloc[id])
	{
		new_effect_rep(0,100,'set_opacity("'+id+'_'+(act_phase[id]*nb_bloc_ctn[id])+'",{vl},1);','{vl}',time_defil[id],12);
	}
	return true;
}
function defilv_next(id)
{
	new_effect_rep(100,0,'set_opacity("'+id+'_'+((act_phase[id]*nb_bloc_ctn[id])-1)+'",{vl},1);','{vl}',time_defil[id],12);
	if((act_phase[id]*nb_bloc_ctn[id])<=nb_bloc[id])
	{
		new_effect_rep(100,0,'set_opacity("'+id+'_'+(act_phase[id]*nb_bloc_ctn[id])+'",{vl},1);','{vl}',time_defil[id],12);
	}
	act_phase[id] = act_phase[id]+1;
	if(act_phase[id]>nb_phases[id])
	{
		act_phase[id]=1;
	}
	new_effect_rep(0,100,'set_opacity("'+id+'_'+((act_phase[id]*nb_bloc_ctn[id])-1)+'",{vl},1);','{vl}',time_defil[id],12);
	if((act_phase[id]*nb_bloc_ctn[id])<=nb_bloc[id])
	{
		new_effect_rep(0,100,'set_opacity("'+id+'_'+(act_phase[id]*nb_bloc_ctn[id])+'",{vl},1);','{vl}',time_defil[id],12);
	}
	return true;
}