function hideLayer(layer)
	{
	if (document.getElementById(layer).style.display=="block") 
		{
		document.getElementById(layer).style.display="none";
		}
	}
	
	function showLayer(layer)
	{
	if (document.getElementById(layer).style.display=="none")
		{
		document.getElementById(layer).style.display="block";
		 
  
		}
	}
	
 function check_layer(layer)
	{	
	
if (document.getElementById(layer).style.display=="none")
		{
		
	showLayer(layer);
			
		
		if(layer!='point_controle'){hideLayer('point_controle');}
		if(layer!='bases_utilisation'){hideLayer('bases_utilisation');}
		if(layer!='consigne_securite'){hideLayer('consigne_securite');}
		if(layer!='en_cas_fuite'){hideLayer('en_cas_fuite');}
		if(layer!='numero_tel_secu'){hideLayer('numero_tel_secu');}
		if(layer!='en_cas_incendie'){hideLayer('en_cas_incendie');}
		if(layer!='installation_bouteille_cuisine'){hideLayer('installation_bouteille_cuisine');}
		if(layer!='connaissance_bouteille_gaz'){hideLayer('connaissance_bouteille_gaz');}
	 
		}
		
else
		{

		hideLayer('en_cas_incendie');
		hideLayer('bases_utilisation');
		hideLayer('consigne_securite');
		hideLayer('en_cas_fuite');
		hideLayer('numero_tel_secu');
		hideLayer('installation_bouteille_cuisine');
		hideLayer('connaissance_bouteille_gaz');
		hideLayer('point_controle');

		}
	}

 function check_gec(layer)
	{	
	
if (document.getElementById(layer).style.display=="none")
		{
		
	showLayer(layer);
			
		
		if(layer!='utilisation_gaz'){hideLayer('utilisation_gaz');}
		if(layer!='Controle_citerne'){hideLayer('Controle_citerne');}
		if(layer!='Numero_telephone'){hideLayer('Numero_telephone');}
		if(layer!='Faites_connaissance'){hideLayer('Faites_connaissance');}
		if(layer!='regle_implantation_citerne'){hideLayer('regle_implantation_citerne');}
		if(layer!='fuite_gaz_citerne'){hideLayer('fuite_gaz_citerne');}
		if(layer!='incendie_prox_reservoir'){hideLayer('incendie_prox_reservoir');}
		 
	 
		}
		
else
		{

		hideLayer('utilisation_gaz');
		hideLayer('Controle_citerne');
		hideLayer('Numero_telephone');
		hideLayer('Faites_connaissance');
		hideLayer('regle_implantation_citerne');
		hideLayer('fuite_gaz_citerne');
		hideLayer('incendie_prox_reservoir');
	 

		}
	}
	
 function check_red(layer)
	{	
	
if (document.getElementById(layer).style.display=="none")
		{
		
	showLayer(layer);
			
		
		if(layer!='interieur'){hideLayer('interieur');}
		if(layer!='exte'){hideLayer('exte');}
		if(layer!='feux'){hideLayer('feux');}
		
	 
		}
		
else
		{

		hideLayer('interieur');
		hideLayer('exte');
		hideLayer('feux');
		

		}
	}	
	
 function check_bleu(layer)
	{	
	
if (document.getElementById(layer).style.display=="none")
		{
		
	showLayer(layer);
			
		
		if(layer!='cuisine'){hideLayer('cuisine');}
		if(layer!='chaudiere'){hideLayer('chaudiere');}
		if(layer!='bbqu'){hideLayer('bbqu');}
		if(layer!='terrasse'){hideLayer('terrasse');}
		if(layer!='appoint'){hideLayer('appoint');}
		if(layer!='incuisine'){hideLayer('incuisine');}
		if(layer!='herbe'){hideLayer('herbe');}
		if(layer!='bain'){hideLayer('bain');}
	 
	 
		}
		
else
		{

		hideLayer('cuisine');
		hideLayer('chaudiere');
		hideLayer('bbqu');
		hideLayer('terrasse');
		hideLayer('appoint');
		hideLayer('incuisine');
		hideLayer('herbe');
		hideLayer('bain');
	 
		

		}
	}		
  function check_vousetnous(layer)
	{	
	
if (document.getElementById(layer).style.display=="none")
		{
		
	showLayer(layer);
			
		
		if(layer!='poli'){hideLayer('poli');}
		if(layer!='vous'){hideLayer('vous');}
		 
	 
	 
		}
		
else
		{

		hideLayer('poli');
		hideLayer('vous');
		 
	 
		

		}
	}