<a class="jq_btn" href="#"><div></div></a>
//Mouse over effect
$(".jq_btn").hover(function(){
$(this).find("div").stop().fadeIn();
},function(){
$(this).find("div").stop().fadeOut();
});
The principle is simple
A label background is set to normal state
Div background sets the hover background for the mouse
You just add to the elements
class="jq_btn"
It all works automatically