<style type="text/css">
<!--

-->
</style>

<script language="javascript">
<!--
  var tbody, headRow;
var bDragMode = false;
var objDragItem;
var arrHitTest = new Array();
var iArrayHit = false;
var ColumnCount = null;
var mustRefresh = false;
var dragColor=null;
var hitColor=null;
var HasTopMostPager=null;
 var PowerTable=null;
//
// Init function.. Fills out variables with data
// loaded with oncontentready.
//將table初始化
function initDragTable(table)
{

var i;

    PowerTable=table;

 if (dragColor == null)
  dragColor = "white";
 if (hitColor == null)
  hitColor = "lightblue";

 // get TBODY - take the first TBODY for the table
 tbody = PowerTable.tBodies(0);

 if (!tbody) return;

 // get THEAD - take the unique THEAD for the table
 var click = PowerTable.tHead;
 if (!click)  return;

 // Determine the row to use (read from HasPager)
 if (HasTopMostPager == "true")
  headRow = click.children[1];
 else
  headRow = click.children[0];

  if (headRow.tagName != "TR") return;

  headRow.runtimeStyle.cursor = "hand"; //"move";
  ColumnCount = headRow.children.length;

  for(i=0; i < ColumnCount ; i++)
  {
    arrHitTest[i] = new Array();
  }

  var cx=0;
  var cy=0;
  var c;
  defaultTitleColor = headRow.children[0].currentStyle.backgroundColor;

  for (i=0; i<ColumnCount ; i++) {

 var clickCell = headRow.children[i];
 clickCell.selectIndex = i;
 c = clickCell.offsetParent;

 if (cx == 0 && cy == 0)
 {
  while (c.offsetParent != null) {
                  cy += c.offsetTop;
                  cx += c.offsetLeft;
                  c = c.offsetParent;
  }
 }

 arrHitTest[i][0] = cx + clickCell.offsetLeft;
 arrHitTest[i][1] = cy + clickCell.offsetTop;
 arrHitTest[i][2] = clickCell;
 arrHitTest[i][3] = cx + clickCell.offsetLeft + clickCell.clientWidth;

 clickCell.attachEvent("onmousedown",onMouseDown);
  }

  PowerTable.attachEvent("onmousemove",onMouseMove);
  PowerTable.attachEvent("onmouseup",onMouseUp);

  ///////
  if (arrHitTest[0][0] == arrHitTest[0][3])
 mustRefresh = true;
}

function InitHeader()
{
  var cx=0;
  var cy=0;
  var c;

  for (i=0; i<ColumnCount ; i++) {

 var clickCell = headRow.children[i];
 clickCell.selectIndex = i;
 c = clickCell.offsetParent;

 if(cx == 0 && cy == 0 )
 {
  while (c.offsetParent != null) {
                  cy += c.offsetTop;
                  cx += c.offsetLeft;
                  c = c.offsetParent;
  }
 }

 arrHitTest[i][0] = cx + clickCell.offsetLeft;
 arrHitTest[i][1] = cy + clickCell.offsetTop;
 arrHitTest[i][2] = clickCell;
 arrHitTest[i][3] = cx + clickCell.offsetLeft + clickCell.clientWidth;

  }
}

function ChangeHeader(iChange)
{
 for(var y = 0; y < arrHitTest.length; y++)
 {
 if (arrHitTest[y][2].currentStyle.backgroundColor == hitColor)
  arrHitTest[y][2].style.backgroundColor = defaultTitleColor;
 }

 if(iChange == "-1") return;

 arrHitTest[iChange][2].style.backgroundColor = hitColor;
}

function onMouseUp(e)
{
 if(!bDragMode) return;
 bDragMode = false;

 var iSelected = objDragItem.selectIndex;

 objDragItem.removeNode(true);
 objDragItem = null;

 ChangeHeader(-1);

 if( (iArrayHit - 1) < 0 || iSelected < 0) return; // default faliure

 // iSelected is the 0-based index of the column being moved
 // (iArrayHit-1) is the 0-based index of the column being replaced
 CopyRow(iSelected, (iArrayHit - 1) );

 // Reset our variables
 iSelected = 0;
 iArrayHit = -1;
}

function onMouseDown(e)
{
 // If the grid is contained in an invisible panel (other DHTML stuff)
 // the initialization step must be repeated to take real values
 if( mustRefresh) {
  InitHeader();
  mustRefresh = false;
 }

 bDragMode  = true;
 var src  = e.srcElement;
 var c  = e.srcElement;

 while (src.tagName != "TD")
  src = src.parentElement;

 // Create our header on the fly
 objDragItem = document.createElement("DIV");
 objDragItem.innerHTML  = src.innerHTML;
 objDragItem.style.height = src.offsetParent.clientHeight;
 objDragItem.style.width  = src.clientWidth;
 objDragItem.style.background = dragColor;
 objDragItem.style.fontColor = src.currentStyle.fontColor;
 objDragItem.style.position  = "absolute";
 objDragItem.style.filter  = "progid:DXImageTransform.Microsoft.Alpha(opacity=75)";
 objDragItem.selectIndex  = src.selectIndex;
        objDragItem.style.border  = "1 solid black";
 while (c.offsetParent != null)
        {
  objDragItem.style.y += c.offsetTop;
  objDragItem.style.x += c.offsetLeft;
  c = c.offsetParent;
 }

 objDragItem.style.borderStyle = "dashed";
  objDragItem.style.borderWidth = "1px";
  objDragItem.style.display = "none";

 src.insertBefore(objDragItem);
}

function onMouseMove(e)
{
 if(!bDragMode || !objDragItem) return;

 // If we aren't dragging or our object is null, we return

 // Hardcoded value for height difference
 var midWObj = objDragItem.style.posWidth / 2;
 var midHObj = 12;

 // Save mouse's position in the document
     var intTop = e.clientY +document.body.scrollTop;
     var intLeft = e.clientX + document.body.scrollLeft;

 var cx=0,cy=0;
 var elCurrent = objDragItem.offsetParent;
 if (elCurrent != null)
 {
          while (elCurrent.offsetParent != null) {
                  cx += elCurrent.offsetTop;
                  cy += elCurrent.offsetLeft;
                  elCurrent = elCurrent.offsetParent;
          }
 }

      objDragItem.style.pixelTop  = intTop  - cx - midHObj;
      objDragItem.style.pixelLeft = intLeft - cy - midWObj;

 if(objDragItem.style.display == "none")
  objDragItem.style.display = "";

 iArrayHit = CheckHit(intTop , intLeft , e);

 e.cancelBubble = false;
 e.returnValue = false;
}

function CheckHit(x,y,e)
{
 midWObj = objDragItem.style.posWidth / 2;
 midHObj = 12;

 for(var i=0; i < ColumnCount; i++)
 {
  if( (y) > (arrHitTest[i][0]) && (y) < (arrHitTest[i][3] ))
  {
   ChangeHeader(i);
   return i + 1;
  }
 }
 return -1;
}

//
// Copy from row to row.. Does the Header also.
//
function CopyRow(from, to)
{
 if(from == to) return;

 var origfrom = from;
 var origto = to;
 var iDiff = 0;

 if( from > to )
 {

  iDiff = from - to;

  var saveObj  = headRow.children[from].innerHTML;
  var saveWidth  = headRow.children[from].width;
for(var i = 0 ; i < iDiff; i++)
  {
   headRow.children[from].innerHTML = headRow.children[from - 1].innerHTML;
   headRow.children[from].width = headRow.children[from - 1].width;
   from--;
  }
  headRow.children[to].innerHTML  = saveObj;
  headRow.children[to].width = saveWidth;
 }
 else
 {

  iDiff = to - from;

  var saveObj = headRow.children[from].innerHTML;
  var saveWidth  = headRow.children[from].width;

  for(var i = 0 ; i < iDiff; i++)
  {
   headRow.children[from].innerHTML = headRow.children[from + 1].innerHTML;
   headRow.children[from].width = headRow.children[from + 1].width;
   from++;
  }

  headRow.children[to].innerHTML  = saveObj;
  headRow.children[to].width = saveWidth;
 }

 for(var i = 0 ; i < headRow.children.length; i++)
   headRow.children[i].selectIndex = i;

 InitHeader();
 for ( var iRowInsert = 0 ; iRowInsert < tbody.rows.length; iRowInsert++ )
 {
  from = origfrom;
  to = origto;
  if( from > to )
  {
   iDiff = from - to;
   var saveObj;
   try {
    saveObj = tbody.children[iRowInsert].children[from].innerHTML;
   } catch(e) { saveObj = null; }
   for(var i = 0 ; i < iDiff; i++)
   {
    try {
     tbody.children[iRowInsert].children[from].innerHTML = tbody.children
[iRowInsert].children[from - 1].innerHTML;
     from--;
    } catch(e) {}
   }
   if (saveObj != null)
    tbody.children[iRowInsert].children[to].innerHTML = saveObj;
  }
  else
  {
   iDiff = to - from;
   var saveObj;
   try {
    saveObj = tbody.children[iRowInsert].children[from].innerHTML;
   } catch(e) {}
   for(var i = 0 ; i < iDiff; i++)
   {
    try {
     tbody.children[iRowInsert].children[from].innerHTML = tbody.children
[iRowInsert].children[from + 1].innerHTML;
     from++;
    } catch(e) {}
   }
   try {
    tbody.children[iRowInsert].children[to].innerHTML = saveObj;
   } catch(e) {}
  }
 }

  ////////

  var buf = "";
  for(var i=0; i<headRow.children.length; i++)
  {
   var td = headRow.children[i];
   tmp = td.innerHTML;
   pos = tmp.indexOf("<");
   if (pos > 0)
    tmp = tmp.substring(0, pos);
   else
   {
    if (pos == 0)
     tmp = td.innerText;
   }

   buf += tmp;
   if (i < headRow.children.length-1)
    buf += ",";
  }}

//-->
</script>

</head>
<body onload="initDragTable(exote)">

<table border="1" cellpadding="0" cellspacing="0" width="100%" height="" align="center" id="exote">
 <tbody>
 <thead>
 
  <td>世界</td>
  <td>中國</td>
  <td>美國</td>
 
 </thead>
 <tr>
  <td>55</td>
  <td>66</td>
  <td>77</td>
 </tr>
 </tbody>
</table>

</body>
</html>