用鼠标拖动表格进行排序

<script language="javascript">  var beginmoving=false;function mousedowntomove(obj){ obj.style.zindex=1; obj.mousedowny=event.clienty; obj.mousedownx=event.clientx; beginmoving=true; obj.setcapture();}

function mousemovetomove(obj){    if(!beginmoving) return false; obj.style.top = (event.clienty-obj.mousedowny); obj.style.left = (event.clientx-obj.mousedownx);}function mouseuptomove(obj){ if(!beginmoving) return false; obj.releasecapture(); obj.style.top=0; obj.style.left=0; obj.style.zindex=0; beginmoving=false; var temptop=event.clienty-obj.mousedowny; var temprowindex=(temptop-temptop%25)/25; if(temprowindex+obj.rowindex <0 )temprowindex=-1; else temprowindex=temprowindex+obj.rowindex; if(temprowindex >= obj.parentelement.rows.length-1) temprowindex = obj.parentelement.rows.length-1; obj.parentelement.moverow(obj.rowindex,temprowindex);}

</script>用鼠标挪动tr<br>   <table width="300" border="1" >      <tr bgcolor=#ffffff style='height:25;position:relative;' onmousedown='mousedowntomove(this)' onmousemove='mousemovetomove(this)' onmouseup='mouseuptomove(this);'><td bgcolor=blue>0</td><td>0</td><td>0</td></tr>   <tr bgcolor=#ffffff style='height:25;position:relative;' onmousedown='mousedowntomove(this)' onmousemove='mousemovetomove(this)' onmouseup='mouseuptomove(this);'><td bgcolor=black>1</td><td>1</td><td>1</td></tr>   <tr bgcolor=#ffffff style='height:25;position:relative;' onmousedown='mousedowntomove(this)' onmousemove='mousemovetomove(this)' onmouseup='mouseuptomove(this);'><td bgcolor=red>2</td><td>2</td><td>2</td></tr>   <tr bgcolor=#ffffff style='height:25;position:relative;' onmousedown='mousedowntomove(this)' onmousemove='mousemovetomove(this)' onmouseup='mouseuptomove(this);'><td>3</td><td>3</td><td>3</td></tr>   <tr bgcolor=#ffffff style='height:25;position:relative;' onmousedown='mousedowntomove(this)' onmousemove='mousemovetomove(this)' onmouseup='mouseuptomove(this);'><td>4</td><td>4</td><td>4</td></tr>   <tr bgcolor=#ffffff style='height:25;position:relative;' onmousedown='mousedowntomove(this)' onmousemove='mousemovetomove(this)' onmouseup='mouseuptomove(this);'><td>5</td><td>5</td><td>5</td></tr>   <tr bgcolor=#ffffff style='height:25;position:relative;' onmousedown='mousedowntomove(this)' onmousemove='mousemovetomove(this)' onmouseup='mouseuptomove(this);'><td>6</td><td>6</td><td>6</td></tr>   <tr bgcolor=#ffffff style='height:25;position:relative;' onmousedown='mousedowntomove(this)' onmousemove='mousemovetomove(this)' onmouseup='mouseuptomove(this);'><td>7</td><td>7</td><td>7</td></tr>

   </script>  </table>