//<![CDATA[
function Show_Menua(id_numa,numa){
for(var i=0;i<3;i++){document.getElementById("contenta_"+id_numa+i).style.display="none";}
for(var i=0;i<3;i++){document.getElementById("menua_"+id_numa+i).className="";}
document.getElementById("menua_"+id_numa+numa).className="Side_on";
document.getElementById("contenta_"+id_numa+numa).style.display="block";
}
//]]>