Imagine that we have the following line with the underlined words functioning as links.
This time tomorrow, we would get there. The time is passing quickly and I wonder if we could stay here longer.
I want the above links to function as follows. The result may appear in a new window, a new frame, a toolbox, a tooltip or whatever. It does not matter. To me the way of presenting the result is important which is as follows.
1) By clicking on "there" for the first time, the word "BOSTON" appears.
2) By clicking on "here" for the first time, the word "LONDON" appears.
3) After both links are consulted once and in a sequential order (that is, first "there" is clicked on, then "here"), by clicking on either "there" or "here" for the second, third, fourth,… times, the word "LONDON" appears.