使用html中的下拉列表框来更改图像

I am using dropdown list box in my html page. I want to change an image on selection of each item from dropdown list box. And also i am using one array which contains the number of item such as temp and for displaying that temp I am using one label I want to change label and also change image on selection of each item in dropdown list box.I am using dropdown list box in my html page. I