function menuB( MBinx ) {
var MBa = "<a href=\"r22preflight.html\" class=\"linkb\">PreFlight R22-beta</a>";
var MBaa = "PreFlight R22-beta";
var MBb = "<a href=\"r22cockpit.html\" class=\"linkb\">EngineStart,Shutdown</a>";
var MBba = "EngineStart,Shutdown";
var MBc = "<a href=\"r22autorotate.html\" class=\"linkb\">Auto Rotation</a>";
var MBca = "Auto Rotation";
var MBd = "<a href=\"r22hoverauto.html\" class=\"linkb\">Hover Auto</a>";
var MBda = "Hover Auto";
var MB1 = "<a href=\"lesson.html\" class=\"linkb\">Lesson</a>";
var MB1a = "Lesson";
document.write("<center><table BORDER=0 CELLPADDING=1 bgcolor=\"#0000FF\">")
document.write("\<tr BGCOLOR=\"#FFFFFF\"\>")
document.write("<td ALIGN=CENTER VALIGN=CENTER>"+(MBinx=="1"?MB1a:MB1)+"</td>")
document.write("<td ALIGN=CENTER VALIGN=CENTER>"+(MBinx=="a"?MBaa:MBa)+"</td>")
document.write("<td ALIGN=CENTER VALIGN=CENTER>"+(MBinx=="b"?MBba:MBb)+"</td>")
document.write("<td ALIGN=CENTER VALIGN=CENTER>"+(MBinx=="c"?MBca:MBc)+"</td>")
document.write("<td ALIGN=CENTER VALIGN=CENTER>"+(MBinx=="d"?MBda:MBd)+"</td>")
document.write("</tr></table></center>")
} // end menuB