function abremenu(id){
		for (var i = 1; i<=30; i++) {
			
			try {
			document.getElementById('sm1'+i).style.display='none';
			} 
			catch(e) {
			
			}
			
			try {
			document.getElementById('sm2'+i).style.display='none';
			} 
			catch(e) {
			
			}
			
			try {
			document.getElementById('sm3'+i).style.display='none';
			} 
			catch(e) {
			
			}
			
			try {
			document.getElementById('sm4'+i).style.display='none';
			} 
			catch(e) {
			
			}
			try {
			document.getElementById('sm5'+i).style.display='none';
			} 
			catch(e) {
			
			}
				
		}
		for (var i = 1; i<=30; i++) {
		
			try {
			document.getElementById("sm"+id+i).style.display = "block";
			} 
			catch(e) {
			
			}
		}
		
		//pongo el estilo en el menu
		document.getElementById("mas"+id).className = 'activo';
		
	}
	
	
	
	
<!-- 

function bderecho(e) { 
if (navigator.appName == 'Netscape' && (e.which == 3 || e.which == 2)) 
return false; 
else if (navigator.appName == 'Microsoft Internet Explorer' && (event.button == 2 || event.button == 3)) { 
alert(" www.fiasa.es "); 
return false; 
} 
return true; 
} 
if (document.layers) window.captureEvents(Event.MOUSEDOWN); 
window.onmousedown=bderecho; 
document.onmousedown=bderecho; 

//-->