Probá así:
Código PHP:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Untitled Document</title>
<script>
function getElementPosition() {
var offsetTrail = this;
var offsetLeft = 0;
var offsetTop = 0;
while (offsetTrail) {
offsetLeft += offsetTrail.offsetLeft;
offsetTop += offsetTrail.offsetTop;
offsetTrail = offsetTrail.offsetParent;
}
return {left:offsetLeft, top:offsetTop};
}
onload=function(){
var pos=getElementPosition.call(document.getElementById('pp'));
alert(pos.top);
alert(pos.left);
}
</script>
</head>
<body><br />
<br />
<br />
<br />
<br />
<div id="pp"></div>
</body>
</html>