使用Javascript从图像到图像（不是图像到白色到图像）的淡入淡出

I have a "slideshow" type of function where images fade in and out to each other. It works fine, but when it fades, it is fading the first picture out to white and then the second picture fades in. What I want is for the first image to fade right into the second (with no empty white background in between). Can I do this?I have a "slideshow" type of function where ima