function show_div(){

  var obj = document.getElementById('dopdiv');
  var mLocX = 0;
  var mLocY = 0;
  if (!event) event = window.event;
    if (event.pageX || event.pageY){
        mLocX = event.pageX;
        mLocY = event.pageY;
    } else if (event.clientX || event.clientY){
        mLocX = event.clientX + (document.documentElement.scrollLeft || document.body.scrollLeft) - document.documentElement.clientLeft;
        mLocY = event.clientY + (document.documentElement.scrollTop || document.body.scrollTop) - document.documentElement.clientTop;
    }

  var xpx=10;
  var ypx=25;
  if (obj) obj.style.display = 'block';
  if (obj) obj.style.left = mLocX + xpx + 'px';
  if (obj) obj.style.top = mLocY + ypx +'px';
}

function hide_div()
{
  document.getElementById('dopdiv').style.display = 'none';
  document.getElementById('dopdiv').innerHTML="<img src='/shop/images/12583176064.gif' alt='' /> выполняю...";
}