Swap two dom elements using jQuery

jQuery_swap_elements

function swapNodes(a, b) {
    var aparent = a.parentNode;
    var asibling = a.nextSibling === b ? a : a.nextSibling;
    b.parentNode.insertBefore(a, b);
    aparent.insertBefore(b, asibling);
}
/** USING JQUERY ***/
function swaptwoID(a,b) {
var nextID = $('#'+a).next().prop('id');
nextID= nextID==b?a:nextID;

$('#'+a).insertBefore($('#'+b));
$('#'+b).insertBefore($('#'+nextID));
}

/**
* Swap two elements within a multiple selector with index a and b
* @param a: index of the first element
* @param b: index of the second elemnt
*
*  DEMO at http://jsfiddle.net/derekhu/8rauhuxh/#base
*/
function swapElement(elements, indexA, indexB) {
  // Make sure indexA is smaller than indexB
  if (indexA > indexB) {
      indexA = indexB + (indexB = indexA, 0);
  }
  var a = elements.get(indexA);
  var b = elements.get(indexB);
  $(a).insertAfter(b);
  $(b).insertBefore(elements.get(indexA + 1));
}

/**
* Swap two dom elements
* @param a: a single element selector of the first element
* @param b: a single element selector of the second element
*
* DEMO at http://jsfiddle.net/derekhu/pr53m04n/#base
*/
function swapElement(a, b) {
  // create a temporary marker div
  var aNext = $('<div>').insertAfter(a);
  a.insertAfter(b);
  b.insertBefore(aNext);
  // remove marker div
  aNext.remove();
}