星星评级系统保存价值点击

I'm trying to make a star rating system, i have this code and i want to make some changes on it, after the user clicks on the stars it shows an alert with how many stars and it resets the colors, what i want is the color filling to stay after the user clicks on it, and replace the alert with a div under the stars, here is my code: I'm trying to make a star rating system, i have