how write UI by javascript

Without knowing exactly what you want, it's hard to say what would be best. In short, you should add code to change the text on the buttons in the blue box, which you change the dropdownlist (onChange). The controls in the red box are totally different from each other, so if you want that for the blue boxes, you need to create a group for each version from your choices in your dropdownlist. Each of these groups need to be aligned in stack mode, so that they are on top of each other. Then the visibility of each group is turned on or off, based on the selection from the dropdownlist.