How to implement Server side include with navigation links

I have 4 html pages. 1 of them is having common UI which needs to be available on all the other pages.

In navigation page there are 3 links which points to the other 3 pages. I have used include to have this c开发者_开发技巧ommon file in all the three.

I am not getting how to handle the link click events and change the page accordingly.

Can anyone please help me in achieving this ?

Thanks in advance. Vijay

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For simple requirement like this, I suggest you to use standard html iframe