function montre_det1() { 
    if (navigator.appName=='Microsoft Internet Explorer') 
    { 
           document.all.Layer_det1.style.visibility='visible'; 
           document.all.Layer_det2.style.visibility='hidden';
    } 
    else 
    { 
           document.getElementById('Layer_det1').style.visibility='visible';
           document.getElementById('Layer_det2').style.visibility='hidden';
    } 
                 ;} 
// -----------------------------                 
                 
function montre_det2() {  
    if (navigator.appName=='Microsoft Internet Explorer') 
    { 
           document.all.Layer_det1.style.visibility='hidden'; 
           document.all.Layer_det2.style.visibility='visible';
    } 
    else 
    { 
           document.getElementById('Layer_det1').style.visibility='hidden';
           document.getElementById('Layer_det2').style.visibility='visible';
    } 
                 ;}   
// -----------------------------      
function montre_det3() { 
    if (navigator.appName=='Microsoft Internet Explorer') 
    { 
           document.all.Layer_det3.style.visibility='visible';
		   document.all.Layer_det4.style.visibility='hidden'; 
           document.all.Layer_det5.style.visibility='hidden';
		   document.all.Layer_det6.style.visibility='hidden'; 
           document.all.Layer_det7.style.visibility='hidden';
		   document.all.Layer_det8.style.visibility='hidden'; 
           document.all.Layer_det9.style.visibility='hidden';
		   document.all.Layer_det10.style.visibility='hidden'; 
           document.all.Layer_det11.style.visibility='hidden';
		   document.all.Layer_det12.style.visibility='hidden'; 
           document.all.Layer_det13.style.visibility='hidden';
		   document.all.Layer_det14.style.visibility='hidden'; 
           document.all.Layer_det15.style.visibility='hidden';
		   document.all.Layer_det16.style.visibility='hidden'; 
    } 
    else 
    { 
           document.getElementById('Layer_det3').style.visibility='visible';
		   document.getElementById('Layer_det4').style.visibility='hidden';
		   document.getElementById('Layer_det5').style.visibility='hidden';
		   document.getElementById('Layer_det6').style.visibility='hidden';
		   document.getElementById('Layer_det7').style.visibility='hidden';
		   document.getElementById('Layer_det8').style.visibility='hidden';
		   document.getElementById('Layer_det9').style.visibility='hidden';
		   document.getElementById('Layer_det10').style.visibility='hidden';
		   document.getElementById('Layer_det11').style.visibility='hidden';
		   document.getElementById('Layer_det12').style.visibility='hidden';
		   document.getElementById('Layer_det13').style.visibility='hidden';
		   document.getElementById('Layer_det14').style.visibility='hidden';
		   document.getElementById('Layer_det15').style.visibility='hidden';
		   document.getElementById('Layer_det16').style.visibility='hidden';
      
    } 
                 ;} 
				 
// -----------------------------      
function montre_det4() { 
    if (navigator.appName=='Microsoft Internet Explorer') 
    { 
           document.all.Layer_det3.style.visibility='hidden';
		   document.all.Layer_det4.style.visibility='visible'; 
           document.all.Layer_det5.style.visibility='hidden';
		   document.all.Layer_det6.style.visibility='hidden'; 
           document.all.Layer_det7.style.visibility='hidden';
		   document.all.Layer_det8.style.visibility='hidden'; 
           document.all.Layer_det9.style.visibility='hidden';
		   document.all.Layer_det10.style.visibility='hidden'; 
           document.all.Layer_det11.style.visibility='hidden';
		   document.all.Layer_det12.style.visibility='hidden'; 
           document.all.Layer_det13.style.visibility='hidden';
		   document.all.Layer_det14.style.visibility='hidden'; 
           document.all.Layer_det15.style.visibility='hidden';
		   document.all.Layer_det16.style.visibility='hidden'; 
    } 
    else 
    { 
           document.getElementById('Layer_det3').style.visibility='hidden';
		   document.getElementById('Layer_det4').style.visibility='visible';
		   document.getElementById('Layer_det5').style.visibility='hidden';
		   document.getElementById('Layer_det6').style.visibility='hidden';
		   document.getElementById('Layer_det7').style.visibility='hidden';
		   document.getElementById('Layer_det8').style.visibility='hidden';
		   document.getElementById('Layer_det9').style.visibility='hidden';
		   document.getElementById('Layer_det10').style.visibility='hidden';
		   document.getElementById('Layer_det11').style.visibility='hidden';
		   document.getElementById('Layer_det12').style.visibility='hidden';
		   document.getElementById('Layer_det13').style.visibility='hidden';
		   document.getElementById('Layer_det14').style.visibility='hidden';
		   document.getElementById('Layer_det15').style.visibility='hidden';
		   document.getElementById('Layer_det16').style.visibility='hidden';
      
    } 
                 ;} 
                 
// -----------------------------      
function montre_det5() { 
    if (navigator.appName=='Microsoft Internet Explorer') 
    { 
           document.all.Layer_det3.style.visibility='hidden';
		   document.all.Layer_det4.style.visibility='hidden'; 
           document.all.Layer_det5.style.visibility='visible';
		   document.all.Layer_det6.style.visibility='hidden'; 
           document.all.Layer_det7.style.visibility='hidden';
		   document.all.Layer_det8.style.visibility='hidden'; 
           document.all.Layer_det9.style.visibility='hidden';
		   document.all.Layer_det10.style.visibility='hidden'; 
           document.all.Layer_det11.style.visibility='hidden';
		   document.all.Layer_det12.style.visibility='hidden'; 
           document.all.Layer_det13.style.visibility='hidden';
		   document.all.Layer_det14.style.visibility='hidden'; 
           document.all.Layer_det15.style.visibility='hidden';
		   document.all.Layer_det16.style.visibility='hidden'; 
    } 
    else 
    { 
           document.getElementById('Layer_det3').style.visibility='hidden';
		   document.getElementById('Layer_det4').style.visibility='hidden';
		   document.getElementById('Layer_det5').style.visibility='visible';
		   document.getElementById('Layer_det6').style.visibility='hidden';
		   document.getElementById('Layer_det7').style.visibility='hidden';
		   document.getElementById('Layer_det8').style.visibility='hidden';
		   document.getElementById('Layer_det9').style.visibility='hidden';
		   document.getElementById('Layer_det10').style.visibility='hidden';
		   document.getElementById('Layer_det11').style.visibility='hidden';
		   document.getElementById('Layer_det12').style.visibility='hidden';
		   document.getElementById('Layer_det13').style.visibility='hidden';
		   document.getElementById('Layer_det14').style.visibility='hidden';
		   document.getElementById('Layer_det15').style.visibility='hidden';
		   document.getElementById('Layer_det16').style.visibility='hidden';
      
    } 
                 ;}

// -----------------------------      
function montre_det6() { 
    if (navigator.appName=='Microsoft Internet Explorer') 
    { 
           document.all.Layer_det3.style.visibility='hidden';
		   document.all.Layer_det4.style.visibility='hidden'; 
           document.all.Layer_det5.style.visibility='hidden';
		   document.all.Layer_det6.style.visibility='visible'; 
           document.all.Layer_det7.style.visibility='hidden';
		   document.all.Layer_det8.style.visibility='hidden'; 
           document.all.Layer_det9.style.visibility='hidden';
		   document.all.Layer_det10.style.visibility='hidden'; 
           document.all.Layer_det11.style.visibility='hidden';
		   document.all.Layer_det12.style.visibility='hidden'; 
           document.all.Layer_det13.style.visibility='hidden';
		   document.all.Layer_det14.style.visibility='hidden'; 
           document.all.Layer_det15.style.visibility='hidden';
		   document.all.Layer_det16.style.visibility='hidden'; 
    } 
    else 
    { 
           document.getElementById('Layer_det3').style.visibility='hidden';
		   document.getElementById('Layer_det4').style.visibility='hidden';
		   document.getElementById('Layer_det5').style.visibility='hidden';
		   document.getElementById('Layer_det6').style.visibility='visible';
		   document.getElementById('Layer_det7').style.visibility='hidden';
		   document.getElementById('Layer_det8').style.visibility='hidden';
		   document.getElementById('Layer_det9').style.visibility='hidden';
		   document.getElementById('Layer_det10').style.visibility='hidden';
		   document.getElementById('Layer_det11').style.visibility='hidden';
		   document.getElementById('Layer_det12').style.visibility='hidden';
		   document.getElementById('Layer_det13').style.visibility='hidden';
		   document.getElementById('Layer_det14').style.visibility='hidden';
		   document.getElementById('Layer_det15').style.visibility='hidden';
		   document.getElementById('Layer_det16').style.visibility='hidden';
      
    } 
                 ;}

// -----------------------------      
function montre_det7() { 
    if (navigator.appName=='Microsoft Internet Explorer') 
    { 
           document.all.Layer_det3.style.visibility='hidden';
		   document.all.Layer_det4.style.visibility='hidden'; 
           document.all.Layer_det5.style.visibility='hidden';
		   document.all.Layer_det6.style.visibility='hidden'; 
           document.all.Layer_det7.style.visibility='visible';
		   document.all.Layer_det8.style.visibility='hidden'; 
           document.all.Layer_det9.style.visibility='hidden';
		   document.all.Layer_det10.style.visibility='hidden'; 
           document.all.Layer_det11.style.visibility='hidden';
		   document.all.Layer_det12.style.visibility='hidden'; 
           document.all.Layer_det13.style.visibility='hidden';
		   document.all.Layer_det14.style.visibility='hidden'; 
           document.all.Layer_det15.style.visibility='hidden';
		   document.all.Layer_det16.style.visibility='hidden'; 
    } 
    else 
    { 
           document.getElementById('Layer_det3').style.visibility='hidden';
		   document.getElementById('Layer_det4').style.visibility='hidden';
		   document.getElementById('Layer_det5').style.visibility='hidden';
		   document.getElementById('Layer_det6').style.visibility='hidden';
		   document.getElementById('Layer_det7').style.visibility='visible';
		   document.getElementById('Layer_det8').style.visibility='hidden';
		   document.getElementById('Layer_det9').style.visibility='hidden';
		   document.getElementById('Layer_det10').style.visibility='hidden';
		   document.getElementById('Layer_det11').style.visibility='hidden';
		   document.getElementById('Layer_det12').style.visibility='hidden';
		   document.getElementById('Layer_det13').style.visibility='hidden';
		   document.getElementById('Layer_det14').style.visibility='hidden';
		   document.getElementById('Layer_det15').style.visibility='hidden';
		   document.getElementById('Layer_det16').style.visibility='hidden';
      
    } 
                 ;}

// -----------------------------      
function montre_det8() { 
    if (navigator.appName=='Microsoft Internet Explorer') 
    { 
           document.all.Layer_det3.style.visibility='hidden';
		   document.all.Layer_det4.style.visibility='hidden'; 
           document.all.Layer_det5.style.visibility='hidden';
		   document.all.Layer_det6.style.visibility='hidden'; 
           document.all.Layer_det7.style.visibility='hidden';
		   document.all.Layer_det8.style.visibility='visible'; 
           document.all.Layer_det9.style.visibility='hidden';
		   document.all.Layer_det10.style.visibility='hidden'; 
           document.all.Layer_det11.style.visibility='hidden';
		   document.all.Layer_det12.style.visibility='hidden'; 
           document.all.Layer_det13.style.visibility='hidden';
		   document.all.Layer_det14.style.visibility='hidden'; 
           document.all.Layer_det15.style.visibility='hidden';
		   document.all.Layer_det16.style.visibility='hidden'; 
    } 
    else 
    { 
           document.getElementById('Layer_det3').style.visibility='hidden';
		   document.getElementById('Layer_det4').style.visibility='hidden';
		   document.getElementById('Layer_det5').style.visibility='hidden';
		   document.getElementById('Layer_det6').style.visibility='hidden';
		   document.getElementById('Layer_det7').style.visibility='hidden';
		   document.getElementById('Layer_det8').style.visibility='visible';
		   document.getElementById('Layer_det9').style.visibility='hidden';
		   document.getElementById('Layer_det10').style.visibility='hidden';
		   document.getElementById('Layer_det11').style.visibility='hidden';
		   document.getElementById('Layer_det12').style.visibility='hidden';
		   document.getElementById('Layer_det13').style.visibility='hidden';
		   document.getElementById('Layer_det14').style.visibility='hidden';
		   document.getElementById('Layer_det15').style.visibility='hidden';
		   document.getElementById('Layer_det16').style.visibility='hidden';
      
    } 
                 ;}

// -----------------------------      
function montre_det9() { 
    if (navigator.appName=='Microsoft Internet Explorer') 
    { 
           document.all.Layer_det3.style.visibility='hidden';
		   document.all.Layer_det4.style.visibility='hidden'; 
           document.all.Layer_det5.style.visibility='hidden';
		   document.all.Layer_det6.style.visibility='hidden'; 
           document.all.Layer_det7.style.visibility='hidden';
		   document.all.Layer_det8.style.visibility='hidden'; 
           document.all.Layer_det9.style.visibility='visible';
		   document.all.Layer_det10.style.visibility='hidden'; 
           document.all.Layer_det11.style.visibility='hidden';
		   document.all.Layer_det12.style.visibility='hidden'; 
           document.all.Layer_det13.style.visibility='hidden';
		   document.all.Layer_det14.style.visibility='hidden'; 
           document.all.Layer_det15.style.visibility='hidden';
		   document.all.Layer_det16.style.visibility='hidden'; 
    } 
    else 
    { 
           document.getElementById('Layer_det3').style.visibility='hidden';
		   document.getElementById('Layer_det4').style.visibility='hidden';
		   document.getElementById('Layer_det5').style.visibility='hidden';
		   document.getElementById('Layer_det6').style.visibility='hidden';
		   document.getElementById('Layer_det7').style.visibility='hidden';
		   document.getElementById('Layer_det8').style.visibility='hidden';
		   document.getElementById('Layer_det9').style.visibility='visible';
		   document.getElementById('Layer_det10').style.visibility='hidden';
		   document.getElementById('Layer_det11').style.visibility='hidden';
		   document.getElementById('Layer_det12').style.visibility='hidden';
		   document.getElementById('Layer_det13').style.visibility='hidden';
		   document.getElementById('Layer_det14').style.visibility='hidden';
		   document.getElementById('Layer_det15').style.visibility='hidden';
		   document.getElementById('Layer_det16').style.visibility='hidden';
      
    } 
                 ;}

// -----------------------------      
function montre_det10() { 
    if (navigator.appName=='Microsoft Internet Explorer') 
    { 
           document.all.Layer_det3.style.visibility='hidden';
		   document.all.Layer_det4.style.visibility='hidden'; 
           document.all.Layer_det5.style.visibility='hidden';
		   document.all.Layer_det6.style.visibility='hidden'; 
           document.all.Layer_det7.style.visibility='hidden';
		   document.all.Layer_det8.style.visibility='hidden'; 
           document.all.Layer_det9.style.visibility='hidden';
		   document.all.Layer_det10.style.visibility='visible'; 
           document.all.Layer_det11.style.visibility='hidden';
		   document.all.Layer_det12.style.visibility='hidden'; 
           document.all.Layer_det13.style.visibility='hidden';
		   document.all.Layer_det14.style.visibility='hidden'; 
           document.all.Layer_det15.style.visibility='hidden';
		   document.all.Layer_det16.style.visibility='hidden'; 
    } 
    else 
    { 
           document.getElementById('Layer_det3').style.visibility='hidden';
		   document.getElementById('Layer_det4').style.visibility='hidden';
		   document.getElementById('Layer_det5').style.visibility='hidden';
		   document.getElementById('Layer_det6').style.visibility='hidden';
		   document.getElementById('Layer_det7').style.visibility='hidden';
		   document.getElementById('Layer_det8').style.visibility='hidden';
		   document.getElementById('Layer_det9').style.visibility='hidden';
		   document.getElementById('Layer_det10').style.visibility='visible';
		   document.getElementById('Layer_det11').style.visibility='hidden';
		   document.getElementById('Layer_det12').style.visibility='hidden';
		   document.getElementById('Layer_det13').style.visibility='hidden';
		   document.getElementById('Layer_det14').style.visibility='hidden';
		   document.getElementById('Layer_det15').style.visibility='hidden';
		   document.getElementById('Layer_det16').style.visibility='hidden';
      
    } 
                 ;}

// -----------------------------      
function montre_det11() { 
    if (navigator.appName=='Microsoft Internet Explorer') 
    { 
           document.all.Layer_det3.style.visibility='hidden';
		   document.all.Layer_det4.style.visibility='hidden'; 
           document.all.Layer_det5.style.visibility='hidden';
		   document.all.Layer_det6.style.visibility='hidden'; 
           document.all.Layer_det7.style.visibility='hidden';
		   document.all.Layer_det8.style.visibility='hidden'; 
           document.all.Layer_det9.style.visibility='hidden';
		   document.all.Layer_det10.style.visibility='hidden'; 
           document.all.Layer_det11.style.visibility='visible';
		   document.all.Layer_det12.style.visibility='hidden'; 
           document.all.Layer_det13.style.visibility='hidden';
		   document.all.Layer_det14.style.visibility='hidden'; 
           document.all.Layer_det15.style.visibility='hidden';
		   document.all.Layer_det16.style.visibility='hidden'; 
    } 
    else 
    { 
           document.getElementById('Layer_det3').style.visibility='hidden';
		   document.getElementById('Layer_det4').style.visibility='hidden';
		   document.getElementById('Layer_det5').style.visibility='hidden';
		   document.getElementById('Layer_det6').style.visibility='hidden';
		   document.getElementById('Layer_det7').style.visibility='hidden';
		   document.getElementById('Layer_det8').style.visibility='hidden';
		   document.getElementById('Layer_det9').style.visibility='hidden';
		   document.getElementById('Layer_det10').style.visibility='hidden';
		   document.getElementById('Layer_det11').style.visibility='visible';
		   document.getElementById('Layer_det12').style.visibility='hidden';
		   document.getElementById('Layer_det13').style.visibility='hidden';
		   document.getElementById('Layer_det14').style.visibility='hidden';
		   document.getElementById('Layer_det15').style.visibility='hidden';
		   document.getElementById('Layer_det16').style.visibility='hidden';
      
    } 
                 ;}
				 
// -----------------------------      
function montre_det12() { 
    if (navigator.appName=='Microsoft Internet Explorer') 
    { 
           document.all.Layer_det3.style.visibility='hidden';
		   document.all.Layer_det4.style.visibility='hidden'; 
           document.all.Layer_det5.style.visibility='hidden';
		   document.all.Layer_det6.style.visibility='hidden'; 
           document.all.Layer_det7.style.visibility='hidden';
		   document.all.Layer_det8.style.visibility='hidden'; 
           document.all.Layer_det9.style.visibility='hidden';
		   document.all.Layer_det10.style.visibility='hidden'; 
           document.all.Layer_det11.style.visibility='hidden';
		   document.all.Layer_det12.style.visibility='visible'; 
           document.all.Layer_det13.style.visibility='hidden';
		   document.all.Layer_det14.style.visibility='hidden'; 
           document.all.Layer_det15.style.visibility='hidden';
		   document.all.Layer_det16.style.visibility='hidden'; 
    } 
    else 
    { 
           document.getElementById('Layer_det3').style.visibility='hidden';
		   document.getElementById('Layer_det4').style.visibility='hidden';
		   document.getElementById('Layer_det5').style.visibility='hidden';
		   document.getElementById('Layer_det6').style.visibility='hidden';
		   document.getElementById('Layer_det7').style.visibility='hidden';
		   document.getElementById('Layer_det8').style.visibility='hidden';
		   document.getElementById('Layer_det9').style.visibility='hidden';
		   document.getElementById('Layer_det10').style.visibility='hidden';
		   document.getElementById('Layer_det11').style.visibility='hidden';
		   document.getElementById('Layer_det12').style.visibility='visible';
		   document.getElementById('Layer_det13').style.visibility='hidden';
		   document.getElementById('Layer_det14').style.visibility='hidden';
		   document.getElementById('Layer_det15').style.visibility='hidden';
		   document.getElementById('Layer_det16').style.visibility='hidden';
      
    } 
                 ;}
				 
// -----------------------------      
function montre_det13() { 
    if (navigator.appName=='Microsoft Internet Explorer') 
    { 
           document.all.Layer_det3.style.visibility='hidden';
		   document.all.Layer_det4.style.visibility='hidden'; 
           document.all.Layer_det5.style.visibility='hidden';
		   document.all.Layer_det6.style.visibility='hidden'; 
           document.all.Layer_det7.style.visibility='hidden';
		   document.all.Layer_det8.style.visibility='hidden'; 
           document.all.Layer_det9.style.visibility='hidden';
		   document.all.Layer_det10.style.visibility='hidden'; 
           document.all.Layer_det11.style.visibility='hidden';
		   document.all.Layer_det12.style.visibility='hidden'; 
           document.all.Layer_det13.style.visibility='visible';
		   document.all.Layer_det14.style.visibility='hidden'; 
           document.all.Layer_det15.style.visibility='hidden';
		   document.all.Layer_det16.style.visibility='hidden'; 
    } 
    else 
    { 
           document.getElementById('Layer_det3').style.visibility='hidden';
		   document.getElementById('Layer_det4').style.visibility='hidden';
		   document.getElementById('Layer_det5').style.visibility='hidden';
		   document.getElementById('Layer_det6').style.visibility='hidden';
		   document.getElementById('Layer_det7').style.visibility='hidden';
		   document.getElementById('Layer_det8').style.visibility='hidden';
		   document.getElementById('Layer_det9').style.visibility='hidden';
		   document.getElementById('Layer_det10').style.visibility='hidden';
		   document.getElementById('Layer_det11').style.visibility='hidden';
		   document.getElementById('Layer_det12').style.visibility='hidden';
		   document.getElementById('Layer_det13').style.visibility='visible';
		   document.getElementById('Layer_det14').style.visibility='hidden';
		   document.getElementById('Layer_det15').style.visibility='hidden';
		   document.getElementById('Layer_det16').style.visibility='hidden';
      
    } 
                 ;}
				 
// -----------------------------      
function montre_det14() { 
    if (navigator.appName=='Microsoft Internet Explorer') 
    { 
           document.all.Layer_det3.style.visibility='hidden';
		   document.all.Layer_det4.style.visibility='hidden'; 
           document.all.Layer_det5.style.visibility='hidden';
		   document.all.Layer_det6.style.visibility='hidden'; 
           document.all.Layer_det7.style.visibility='hidden';
		   document.all.Layer_det8.style.visibility='hidden'; 
           document.all.Layer_det9.style.visibility='hidden';
		   document.all.Layer_det10.style.visibility='hidden'; 
           document.all.Layer_det11.style.visibility='hidden';
		   document.all.Layer_det12.style.visibility='hidden'; 
           document.all.Layer_det13.style.visibility='hidden';
		   document.all.Layer_det14.style.visibility='visible'; 
           document.all.Layer_det15.style.visibility='hidden';
		   document.all.Layer_det16.style.visibility='hidden'; 
    } 
    else 
    { 
           document.getElementById('Layer_det3').style.visibility='hidden';
		   document.getElementById('Layer_det4').style.visibility='hidden';
		   document.getElementById('Layer_det5').style.visibility='hidden';
		   document.getElementById('Layer_det6').style.visibility='hidden';
		   document.getElementById('Layer_det7').style.visibility='hidden';
		   document.getElementById('Layer_det8').style.visibility='hidden';
		   document.getElementById('Layer_det9').style.visibility='hidden';
		   document.getElementById('Layer_det10').style.visibility='hidden';
		   document.getElementById('Layer_det11').style.visibility='hidden';
		   document.getElementById('Layer_det12').style.visibility='hidden';
		   document.getElementById('Layer_det13').style.visibility='hidden';
		   document.getElementById('Layer_det14').style.visibility='visible';
		   document.getElementById('Layer_det15').style.visibility='hidden';
		   document.getElementById('Layer_det16').style.visibility='hidden';
      
    } 
                 ;}

// -----------------------------      
function montre_det15() { 
    if (navigator.appName=='Microsoft Internet Explorer') 
    { 
           document.all.Layer_det3.style.visibility='hidden';
		   document.all.Layer_det4.style.visibility='hidden'; 
           document.all.Layer_det5.style.visibility='hidden';
		   document.all.Layer_det6.style.visibility='hidden'; 
           document.all.Layer_det7.style.visibility='hidden';
		   document.all.Layer_det8.style.visibility='hidden'; 
           document.all.Layer_det9.style.visibility='hidden';
		   document.all.Layer_det10.style.visibility='hidden'; 
           document.all.Layer_det11.style.visibility='hidden';
		   document.all.Layer_det12.style.visibility='hidden'; 
           document.all.Layer_det13.style.visibility='hidden';
		   document.all.Layer_det14.style.visibility='hidden'; 
           document.all.Layer_det15.style.visibility='visible';
		   document.all.Layer_det16.style.visibility='hidden'; 
    } 
    else 
    { 
           document.getElementById('Layer_det3').style.visibility='hidden';
		   document.getElementById('Layer_det4').style.visibility='hidden';
		   document.getElementById('Layer_det5').style.visibility='hidden';
		   document.getElementById('Layer_det6').style.visibility='hidden';
		   document.getElementById('Layer_det7').style.visibility='hidden';
		   document.getElementById('Layer_det8').style.visibility='hidden';
		   document.getElementById('Layer_det9').style.visibility='hidden';
		   document.getElementById('Layer_det10').style.visibility='hidden';
		   document.getElementById('Layer_det11').style.visibility='hidden';
		   document.getElementById('Layer_det12').style.visibility='hidden';
		   document.getElementById('Layer_det13').style.visibility='hidden';
		   document.getElementById('Layer_det14').style.visibility='hidden';
		   document.getElementById('Layer_det15').style.visibility='visible';
		   document.getElementById('Layer_det16').style.visibility='hidden';
      
    } 
                 ;}
				 
// -----------------------------      
function montre_det16() { 
    if (navigator.appName=='Microsoft Internet Explorer') 
    { 
           document.all.Layer_det3.style.visibility='hidden';
		   document.all.Layer_det4.style.visibility='hidden'; 
           document.all.Layer_det5.style.visibility='hidden';
		   document.all.Layer_det6.style.visibility='hidden'; 
           document.all.Layer_det7.style.visibility='hidden';
		   document.all.Layer_det8.style.visibility='hidden'; 
           document.all.Layer_det9.style.visibility='hidden';
		   document.all.Layer_det10.style.visibility='hidden'; 
           document.all.Layer_det11.style.visibility='hidden';
		   document.all.Layer_det12.style.visibility='hidden'; 
           document.all.Layer_det13.style.visibility='hidden';
		   document.all.Layer_det14.style.visibility='hidden'; 
           document.all.Layer_det15.style.visibility='hidden';
		   document.all.Layer_det16.style.visibility='visible'; 
    } 
    else 
    { 
           document.getElementById('Layer_det3').style.visibility='hidden';
		   document.getElementById('Layer_det4').style.visibility='hidden';
		   document.getElementById('Layer_det5').style.visibility='hidden';
		   document.getElementById('Layer_det6').style.visibility='hidden';
		   document.getElementById('Layer_det7').style.visibility='hidden';
		   document.getElementById('Layer_det8').style.visibility='hidden';
		   document.getElementById('Layer_det9').style.visibility='hidden';
		   document.getElementById('Layer_det10').style.visibility='hidden';
		   document.getElementById('Layer_det11').style.visibility='hidden';
		   document.getElementById('Layer_det12').style.visibility='hidden';
		   document.getElementById('Layer_det13').style.visibility='hidden';
		   document.getElementById('Layer_det14').style.visibility='hidden';
		   document.getElementById('Layer_det15').style.visibility='hidden';
		   document.getElementById('Layer_det16').style.visibility='visible';
      
    } 
                 ;}
				 
// -----------------------------
function montre_det17() { 
    if (navigator.appName=='Microsoft Internet Explorer') 
    { 
           document.all.Layer_det17.style.visibility='visible'; 
           document.all.Layer_det18.style.visibility='hidden';
    } 
    else 
    { 
           document.getElementById('Layer_det17').style.visibility='visible';
           document.getElementById('Layer_det18').style.visibility='hidden';
    } 
                 ;} 

// -----------------------------
function montre_det18() { 
    if (navigator.appName=='Microsoft Internet Explorer') 
    { 
           document.all.Layer_det17.style.visibility='hidden'; 
           document.all.Layer_det18.style.visibility='visible';
    } 
    else 
    { 
           document.getElementById('Layer_det17').style.visibility='hidden';
           document.getElementById('Layer_det18').style.visibility='visible';
    } 
                 ;} 

// -----------------------------    
  
              
function cache_det() { // pour faire disparaitre les DIV 
    if (navigator.appName=='Microsoft Internet Explorer') 
    { 
           document.all.Layer_det1.style.visibility='hidden';
           document.all.Layer_det2.style.visibility='hidden';
           document.all.Layer_det3.style.visibility='hidden';

 
    } 
    else 
    { 
           document.getElementById('Layer_det1').style.visibility='hidden';
           document.getElementById('Layer_det2').style.visibility='hidden';
           document.getElementById('Layer_det3').style.visibility='hidden';


    } 
                 ;} 

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


function montreimg1() { 
    if (navigator.appName=='Microsoft Internet Explorer') 
    { 
           document.all.Layer_img1.style.visibility='visible'; 
           document.all.Layer_img2.style.visibility='visible'; 
           document.all.Layer_img3.style.visibility='hidden';                 
    } 
    else 
    { 
           document.getElementById('Layer_img1').style.visibility='visible';
           document.getElementById('Layer_img2').style.visibility='visible';
           document.getElementById('Layer_img3').style.visibility='hidden';     
    } 
                 ;} 
// -----------------------------                 
                 



function cacheimg2() { // pour faire disparaitre les DIV 
    if (navigator.appName=='Microsoft Internet Explorer') 
    { 
           document.all.Layer_img1.style.visibility='hidden';
           document.all.Layer_img2.style.visibility='hidden';
           document.all.Layer_img3.style.visibility='visible'; 
    } 
    else 
    { 
           document.getElementById('Layer_img1').style.visibility='hidden';
           document.getElementById('Layer_img2').style.visibility='hidden';
           document.getElementById('Layer_img3').style.visibility='visible';
    } 
                 ;} 

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