var _console = null;

function debug(msg) 
{
    // Open a window the first time we are called, or after an existing
    // console window has been closed.
    if ((_console == null) || (_console.closed)) { 
        _console = window.open("","","status,width=600,height=300,resizable");
        // Open a document in the window to display plain text.
        _console.document.open("text/plain");
        _console.document.title = "console";
    }

    _console.document.writeln(msg + "<br>");
    _console.status = msg;
}