I currently have a login form that clears text from the field after a user clicks on it. How can I have the field's value be replaced with the original text if the field looses focus and is empty? Something like 

```
$("#input_field").loseFocus(//Total pseudocode. 
    if((this).attr("value")==''){
        (this).attr("value","Original text! Woohoo!");
    }
);

```

I do use jQuery, and I can provide the webpage if it's necessary.