拖动的div

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PHP .net HTML


<head><title></title>
<style>
body 
{
font-size:12px;
color:#333333;
border : 0px solid blue;
}
div
{
position : absolute;
background-color : #c3d9ff;
margin : 0px;
padding : 5px;
border : 0px;
width : 100px;
height:100px;
}
</style>
</head>
<body>
<script>
function drag(o,s)
{
if (typeof o == "string") o = document.getElementById(o);
o.orig_x = parseInt(o.style.left) - document.body.scrollLeft;
o.orig_y = parseInt(o.style.top) - document.body.scrollTop;
o.orig_index = o.style.zIndex;
  
o.onmousedown = function(a)
{
  this.style.cursor = "move";
  this.style.zIndex = 10000;
  var d=document;
  if(!a)a=window.event;
  var x = a.clientX+d.body.scrollLeft-o.offsetLeft;
  var y = a.clientY+d.body.scrollTop-o.offsetTop;

  d.ondragstart = "return false;"
  d.onselectstart = "return false;"
  d.onselect = "document.selection.empty();"
    
  if(o.setCapture)
   o.setCapture();
  else if(window.captureEvents)
   window.captureEvents(Event.MOUSEMOVE|Event.MOUSEUP);
  d.onmousemove = function(a)
  {
   if(!a)a=window.event;
   o.style.left = a.clientX+document.body.scrollLeft-x;
   o.style.top = a.clientY+document.body.scrollTop-y;
   o.orig_x = parseInt(o.style.left) - document.body.scrollLeft;
   o.orig_y = parseInt(o.style.top) - document.body.scrollTop;
  }
  d.onmouseup = function()
  {
   if(o.releaseCapture)
    o.releaseCapture();
   else if(window.captureEvents)
    window.captureEvents(Event.MOUSEMOVE|Event.MOUSEUP);
   d.onmousemove = null;
   d.onmouseup = null;
   d.ondragstart = null;
   d.onselectstart = null;
   d.onselect = null;
   o.style.cursor = "normal";
   o.style.zIndex = o.orig_index;
  }
}

if (s)
{
  var orig_scroll = window.onscroll?window.onscroll:function (){};
  window.onscroll = function ()
  {
   orig_scroll();
   o.style.left = o.orig_x + document.body.scrollLeft;
   o.style.top = o.orig_y + document.body.scrollTop;
  }
}
}
</script>
<div id="div1" style="left:10px;top:10px;">div1:拖吧，往死里拖</div>
<div id="div2" style="left:120px;top:10px;background-color : #f3d9ff">div2:来拖我呀</div>
<div id="div3" style="left:230px;top:10px;background-color : #c3ffff">div3:随你怎么拖</div>
<div id="div4" style="left:10px;top:120px;background-color : #c3d944">div4:我可以随窗口滑动，把我拖到最下面，然后滚动网页看看</div>
<div id="div5" style="left:120px;top:120px;background-color : #f3d944">php同盟会<br/><a href=http://www.dophp.net target=_blank>www.dophp.net</a>
</div>
<div id="div6" style="left:230px;top:120px;background-color : #e3f944;width:200px;">参数说明:<br/>
drag(obj [,scroll]);<br/>
obj:对象的id或对象本身;<br/>
scroll(可选):对象是否随窗口拖动而滑动，默认为否<br/>
鼠标右键查看源代码
</div>

<script>
drag("div1");
drag("div2");
drag("div3");
drag("div4",1);
drag("div5",1);
drag("div6",1);

</script>
</body>

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