//message logger

var log = {
	//variables
	loggers : {
		info  : [],
		debug : [],
		warn  : [],
		error : []
	},
	
	//debug msg
	info  : function (message) { this.message('info',  message); },
	warn  : function (message) { this.message('warn',  message); },
	error : function (message) { this.message('error', message); },
    debug : function (message) { this.message('debug', (typeof message == 'object') ? this._dumpObject(message) : message); },
	
	message : function (type, message)
	{
		if (type == undefined)
			type = 'info';
		
		if (message == null)
			message = '(null)';
		
		for (var i in this.loggers[type])
			this.loggers[type][i]( message );
	},
	
	//register logger functions to be called to show message
	registerLoggers : function ( loggers )
	{
		for (var i in loggers) {
			if (this.loggers[i] != undefined) {
				this.loggers[i].push( loggers[i] );
			}
		}
	},

    _dumpObject : function( object, step )
    {
        if (step == undefined) step = 0;

        if (step > 1) return '';

        space = new Array(step).join('-> ');
        dump = '';

        for (var key in object) {
            var value = object[key];
            var type = typeof value;

            switch (type) {
                case 'string':
                case 'number':
                case 'boolean':
                    value = '<font color="green">('+type+')</font> <font color="red">'+value+'</font>'; break;
                case 'object':
                    value = '<font color="cyan">(object)</font>'; break;
                case 'function':
                    value = '<font color="yellow">(function)</font>'; break;
                default:
                    value = '<font color="gray">('+type+')</font>';
            }
            dump += key+': '+value+'<br/>';
        }

        return dump;
    }
};