var debugging = false; // or true
// do we have a console?
if (typeof console == "undefined")
{
    var console = { log: function() {
        if(debugging && arguments.length > 0)
        {
            var alertMessage = '';
            for(var itrArg = 0; itrArg < arguments.length; itrArg++)
            {
                if (arguments[itrArg] != "undefined")
                    alertMessage += '\n' + arguments[itrArg];
            }
            alert(alertMessage);
        }
    } };
}
// are we debugging?
else if (!debugging || typeof console.log == "undefined")
{
    console.log = function() {};
}