##
win.serverFrames

    var s = serverFrames[3]
    for (var i=0;i<serverFrames.length;i++) {
        var s = serverFrames[i]
    	...
    }

The array containing all serverFrames belonging to the window. After the initial creation of the window, there is only one serverFrame, "serverFrames[0]", which is used for the default window methods like "setVar()". Additional serverFrames can be created by the "addServerFrame()" method. When a window is submitted, all serverFrames within that window with a server URL defined (via "setServerURL()" will be submitted in parallel, and the leftmost button on the titlebar will turn red. After the last serverFrame has returned, the button will turn grey again.