使用一个函数移动矩阵样式背景等多个div

I am making sort of matrix style background, images are going to drop down at random times. I would like to pass the division's to one function as an argument to start the animation. I cannot work out how to accomplish this. I don't think its good practice to write the same function for every graphic that drops down. This is what I have-I am making sort of matrix style background, im