var offsetx = -200;
var offsety = 8;
var overx = 0;
var overy = 0;
var divtomove = null;
var delayid = null;
var overlapObjects = null;

function OpenOver(div, text, e)
{
  browser.setInnerHTML($(div), text);
  $(div).style.left = (browser.getCursorX(e)+offsetx)+'px';
  $(div).style.top = (browser.getCursorY(e)+offsety)+'px';
  $(div).style.visibility = 'visible';
  divtomove = div;
  delayid = setTimeout("movethedivision()", 1);
}

function CloseOver(div)
{
  $(div).style.visibility = 'hidden';

  OverShowControl();

  if (delayid != null)
    clearTimeout(delayid)
  delayid = null;
  divtomove = null;
}

function mouseMove(e)
{
  overx = browser.getCursorX(e);
  overy = browser.getCursorY(e);
}

function movethedivision()
{
  $(divtomove).style.left = (overx+offsetx)+'px';
  $(divtomove).style.top = (overy+offsety)+'px';

  if (!overlapObjects)
  {
    overlapObjects = new Array();

    OverHideControl ("IFRAME", divtomove);
    OverHideControl ("SELECT", divtomove);
    OverHideControl ("OBJECT", divtomove);
  }

  delayid = setTimeout("movethedivision();", 100);
}

document.onmousemove = mouseMove;

function OverHideControl (tagName, div)
{
  if (!browser.isIE())
    return;

  var x = document.all[div].offsetLeft;
  var y = document.all[div].offsetTop;
  var w = document.all[div].offsetWidth;
  var h = document.all[div].offsetHeight;

  var i;
  for (i = 0; i < document.all.tags(tagName).length; ++i)
  {
    var obj = document.all.tags(tagName)[i];
    if (!obj || !obj.offsetParent)
      continue;

    if(obj.style.visibility == "hidden")
      continue;

    // check if the object and the div overlap
    var ox = OverGetX (obj);
    var oy = OverGetY (obj);
    var ow = obj.offsetWidth;
    var oh = obj.offsetHeight;

    // 150 pixels of security for X (links)
    if (ox > (x + w + 150) || (ox + ow + 150) < x)
      continue;
    // 20 pixels of security for Y (lines and gifs)
    if (oy > (y + h + 20) || (oy + oh + 20) < y)
      continue;

    overlapObjects[overlapObjects.length] = obj;
    obj.style.visibility = "hidden";
  }
}

function OverShowControl ()
{
  if (overlapObjects)
  {
    var i;
    for (i = 0; i < overlapObjects.length; ++i)
      overlapObjects[i].style.visibility = "";
  }
  overlapObjects = null;
}

function OverGetX(obj)
{
  var x = 0;
  do
  {
    x += obj.offsetLeft;
    obj = obj.offsetParent;
  }
  while (obj);
  return x;
}

function OverGetY(obj)
{
  var y = 0;
  do
  {
    y += obj.offsetTop;
    obj = obj.offsetParent;
  }
  while (obj);
  return y;
}