Ask HN: Best slider? (Javascript/AJAX, PHP)

I have a PHP-based web site and on a particular form, I would like users to be able to click-drag a horizontal slider to enter a value (among others) on the form. For instance: How much do you like this photo, on a scale of 1-10 ? It would be nice if the value gets displayed beside the slider, in addition to the position of the slider.

I want something that is simple to implement (including some control over appearance/colour), but also compatible with most current browsers.

What do you recommend? What do you use on your own sites? (I did some Googling, but came across quite a bit of junk out there.)