/**
 *  timer functionality, for debuging
 *  use firebug!!
 */
 var _tmr = function(){

    var _start = 0;
    var _tick = 0;
    var _str = '';

    var _now = function(){
        var current = new Date();
        return current.getTime();
    }

    this.start  = function(){
//        return;
        _start = _tick = _now();
        _str = _str +  'starts: ' ;
    }
    this.end  = function(){
//        return;
        var _t = _now();
        _str = _str + 'ends: ' + ( _t - _start );
        _log(_str);
    }
    this.tick  = function( s ){
//        return;
        s = s || '--------'
        var _t = _now();
        _str = _str + s + ' ' + ( _t - _tick ) + "\n";
        _tick = _t
    }



 }