How do I make the click not move an element in jQuery?

Question

In this example depending on the place I click, the page moves to reach the ID that is being selected with the click. I would like to prevent the page NAY moved independently of the given click.

I used this code because I need to get the ID of that element HTML A ...

$("#map li a").click(function(){

    var estado = $(this).attr("id");
    var Cestado = estado.toUpperCase();
    alert(Cestado); 

});