I'm having a textbox and assigned the following function (it's the only function assigned):

```
txt.bind("keyup",function(event){
    if(event.keyCode==13)
    {
        var nu = $("#debug").html();
        nu+="<br>enter";
        $("#debug").html(nu);
    }
});

```

The strange thing is that it's actually firing twice, thus displaying "enter" twice in my debug window.
Does anyone know what is causing this?