myKeyboard = function(){
    var self = this;
    this.keyspressed = [];
    this.i = [[0]];
    
    document.onkeydown = function(event){
        self.keyPress(event);
    };
    
    document.onkeyup = function(event){
        self.keyUp(event);
    };
};

myKeyboard.prototype.keyPress = function(event){
    var code;
        
    if (event.keyCode === [[0]] || event.keyCode == "undefined"){
        code = event.charCode;
    } else {
        code = event.keyCode;
    }
        
    this.keyspressed = [[1]];
};

myKeyboard.prototype.keyUp = function(event){
    var code;
        
    if (event.keyCode === [[0]] || event.keyCode == "undefined"){
        code = event.charCode;
    } else {
        code = event.keyCode;
    }
    
    this.keyspressed = [[0]];
};

myKeyboard.prototype.isKeyDown = function(/*int*/ keyCode){
    if (typeof this.keyspressed[keyCode] == "undefined" || this.keyspressed[keyCode] === [[0]]){
        return false;
    } else {
        return true;
    }
};