add element id to image

[stephanie vigil]

How would I assign an element id to a string like this one:

function show_image1() {
  document["portimage"].src =
    portfolioPosts[1 + pageStartingNum - 2][0].src;
  onImage=1;
  reset_numbers(); 
  large_img_f();
  return true;
}

Thanks in adv. -S

[acoder]

Either use setAttribute() or set the ID directly, e.g.

elem.id = id;