RGBA not working on IE7

RGBA not working on IE7


Can someone tell me how to make rgba work in IE7 and IE8?

I want to make a transparent background-color to animate when hovering over an object.
I don't know how to make it work in IE7 and IE8.

This is my code;

        $("#live").hover(function() {
            $(this).stop().animate({ backgroundColor: "rgba(88,62,70,0.5)"},1000)
        },function() {
            $(this).stop().animate({ backgroundColor: "rgba(253,162,50,0.8)" },1000)

Thanks in advace.