//global variable for subwindow reference
var vmba

//generate and fill the new window
function launchVMBA(room)
  { 
    // make sure it isn't already opened
            vmba = '../images/walls/vmba.html'
    if ((room != null) & ( room != "")) vmba = vmba + "?room=" +room
            vmba =   window.open(vmba,'Moonbase','height=585,width=800,scrollbars,resizable,dependent')
    //brings browser to front
    vmba.focus();
  }