HOW TO GET POSITION OF PARTICULAR OBJECT USING JAVASCRIPT

Below JavaScript function is used to get position of any object.

function findPos()
{
      //Here 'myTextbox' is object whose position is calculated.
      obj = document.getElementById('myTextbox');
      var posX = obj.offsetLeft;
      var posY = obj.offsetTop;
      while(obj.offsetParent)
     {
      posX=posX+obj.offsetParent.offsetLeft;
      posY=posY+obj.offsetParent.offsetTop;
      if(obj==document.getElementsByTagName('body')[0]){break}
      else{obj=obj.offsetParent;}
      }
//posX and posY are postion of required object.
}