//CONTACT
function montre_contact() { 
    if (navigator.appName=='Microsoft Internet Explorer') 
    { 
           document.all.Layer_contact.style.visibility='visible'; 
                   
    } 
    else 
    { 
           document.getElementById('Layer_contact').style.visibility='visible';
     
    } 
      ;} 

// ----------------------------- 

function cache_contact() { 
    if (navigator.appName=='Microsoft Internet Explorer') 
    { 
           document.all.Layer_contact.style.visibility='hidden'; 
                   
    } 
    else 
    { 
           document.getElementById('Layer_contact').style.visibility='hidden';
     
    } 
      ;}

// ----------------------------- 

//SIMUL
function montre_simul() { 
    if (navigator.appName=='Microsoft Internet Explorer') 
    { 
           document.all.Layer_simul.style.visibility='visible'; 
                   
    } 
    else 
    { 
           document.getElementById('Layer_simul').style.visibility='visible';
     
    } 
      ;} 

// ----------------------------- 

function cache_simul() { 
    if (navigator.appName=='Microsoft Internet Explorer') 
    { 
           document.all.Layer_simul.style.visibility='hidden'; 
                   
    } 
    else 
    { 
           document.getElementById('Layer_simul').style.visibility='hidden';
     
    } 
      ;}
	  
// ----------------------------- 

//formation
function montre_formation() { 
    if (navigator.appName=='Microsoft Internet Explorer') 
    { 
           document.all.Layer_forma.style.visibility='visible'; 
                   
    } 
    else 
    { 
           document.getElementById('Layer_forma').style.visibility='visible';
     
    } 
      ;} 

// ----------------------------- 

function cache_formation() { 
    if (navigator.appName=='Microsoft Internet Explorer') 
    { 
           document.all.Layer_forma.style.visibility='hidden'; 
                   
    } 
    else 
    { 
           document.getElementById('Layer_forma').style.visibility='hidden';
     
    } 
      ;}