jquery opacity cross browser?

Question

Is the the jQuery('#selector').css({'opacity':50}); cross browser?

The only reason i ask is because the line below that we'd normally use on css

-moz-opacity:.50; filter:alpha(opacity=50); opacity:.50;

Answer 1

this is probably better:

$(element).fadeTo(0, 0.5);

Answer 2

Yes, it sets the css opacity or IE's opacity filter.