Get the position of a div/span tag

<span id='11a' style='top:55px;' onmouseover="GetPos(this);">stuff</span>
<span id='12a' onmouseover="GetPos(this);">stuff</span>

document.getElementById('11a').style.top

function getPos(el) {
    // yay readability
    for (var lx=0, ly=0;
         el != null;
         lx += el.offsetLeft, ly += el.offsetTop, el = el.offsetParent);
    return {x: lx,y: ly};
}

var x = el.offsetLeft, y = el.offsetTop;

var yPositionOfNewElement = el.offsetTop + el.offsetHeight + someMargin;

var left = $('.span').offset().left,
    top = $('.span').offset().top;

$(document).ready(function(){
  // Alert the position with jQuery
  var position = $("#myDivInQuestion").position();
  alert('X: ' + position.left + ", Y: " + position.top );
});