function montre1() { 
    if (navigator.appName=='Microsoft Internet Explorer') 
    { 
           document.all.smenu1.style.visibility='visible'; 
           document.all.smenu2.style.visibility='hidden';
		   document.all.smenu3.style.visibility='hidden';
		   document.all.smenu4.style.visibility='hidden';
    } 
    else 
    { 
           document.getElementById('smenu1').style.visibility='visible';
           document.getElementById('smenu2').style.visibility='hidden';
		   document.getElementById('smenu3').style.visibility='hidden';
		   document.getElementById('smenu4').style.visibility='hidden';
	} 
                 ;} 

// -----------------------------                 
                 
function montre2() {  
    if (navigator.appName=='Microsoft Internet Explorer') 
    { 
           document.all.smenu1.style.visibility='hidden'; 
           document.all.smenu2.style.visibility='visible';
		   document.all.smenu3.style.visibility='hidden';
		   document.all.smenu4.style.visibility='hidden';
    } 
    else 
    { 
           document.getElementById('smenu1').style.visibility='hidden';
           document.getElementById('smenu2').style.visibility='visible';
		   document.getElementById('smenu3').style.visibility='hidden';
		   document.getElementById('smenu4').style.visibility='hidden';
	} 
                 ;} 
// ----------------------------- 

function montre3() { 
    if (navigator.appName=='Microsoft Internet Explorer') 
    { 
           document.all.smenu1.style.visibility='hidden'; 
           document.all.smenu2.style.visibility='hidden';
		   document.all.smenu3.style.visibility='visible';
		   document.all.smenu4.style.visibility='hidden';
    } 
    else 
    { 
           document.getElementById('smenu1').style.visibility='hidden';
           document.getElementById('smenu2').style.visibility='hidden';
		   document.getElementById('smenu3').style.visibility='visible';
		   document.getElementById('smenu4').style.visibility='hidden';
	} 
                 ;}   

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

function montre4() { 
    if (navigator.appName=='Microsoft Internet Explorer') 
    { 
           document.all.smenu1.style.visibility='hidden'; 
           document.all.smenu2.style.visibility='hidden';
		   document.all.smenu3.style.visibility='hidden';
		   document.all.smenu4.style.visibility='visible';
    } 
    else 
    { 
           document.getElementById('smenu1').style.visibility='hidden';
           document.getElementById('smenu2').style.visibility='hidden';
		   document.getElementById('smenu3').style.visibility='hidden';
		   document.getElementById('smenu4').style.visibility='visible';
	} 
                 ;}   

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


function cache() { // pour faire disparaitre les DIV 
   if (navigator.appName=='Microsoft Internet Explorer') 
    { 
           document.all.smenu1.style.visibility='hidden'; 
           document.all.smenu2.style.visibility='hidden';
		   document.all.smenu3.style.visibility='hidden';
		   document.all.smenu4.style.visibility='hidden';
    } 
    else 
    { 
           document.getElementById('smenu1').style.visibility='hidden';
           document.getElementById('smenu2').style.visibility='hidden';
		   document.getElementById('smenu3').style.visibility='hidden';
		   document.getElementById('smenu4').style.visibility='hidden';
	} 
                 ;}   

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