我现在新 生成一个ＤＩＶ和相应时间，我的感觉就是由于是动态生成的，既在onload 后生成ＤＩＶ
所以有些事件出发不了，急
------解决方案--------------------
改了下 ，或许对你有些帮助
- HTML code
<html>
<head>
</head>
<script>
/**************************************************
我写的部分，setconfig就是新生成一个ＤＩＶ
然后用Drag.init(document.getElementById( "message ")); 使用封装类的函数（让它拖动）
这个时候无效了？？？
代码可执行，大家帮我看看
**************************************************/
function setConfig()
{
var str = " "
+ " <div id=message "
+ "style= "
+ "width:50; "
+ "height:60; "
+ "background-color:lightyellow; "
+ "> "
+ "ddd "
+ " </div> "
//生成 DIV
//document.body.insertAdjacentHTML( "beforeEnd ", str);
document.write(str);
//通过DRAG使 DIV可以拖动，在静态DIV通过测试，可是对于这个动态生成的DIV，没有起作用
}
window.onload = function (){
setConfig();
Drag.init(document.getElementById( "message "));
}
/**************************************************
下面是封装的拖动类
**************************************************/
var Drag = {
obj : null,
init : function(o, oRoot, minX, maxX, minY, maxY, bSwapHorzRef, bSwapVertRef, fXMapper, fYMapper)
{
alert( "进入DRAG类，没起作用 ");
o.onmousedown = Drag.start;
o.hmode = bSwapHorzRef ? false : true ;
o.vmode = bSwapVertRef ? false : true ;
o.root = oRoot && oRoot != null ? oRoot : o ;
if (o.hmode && isNaN(parseInt(o.root.style.left ))) o.root.style.left = "0px ";
if (o.vmode && isNaN(parseInt(o.root.style.top ))) o.root.style.top = "0px ";
if (!o.hmode && isNaN(parseInt(o.root.style.right ))) o.root.style.right = "0px ";
if (!o.vmode && isNaN(parseInt(o.root.style.bottom))) o.root.style.bottom = "0px ";
o.minX = typeof minX != 'undefined ' ? minX : null;
o.minY = typeof minY != 'undefined ' ? minY : null;
o.maxX = typeof maxX != 'undefined ' ? maxX : null;
o.maxY = typeof maxY != 'undefined ' ? maxY : null;
o.xMapper = fXMapper ? fXMapper : null;
o.yMapper = fYMapper ? fYMapper : null;
o.root.onDragStart = new Function();
o.root.onDragEnd = new Function();
o.root.onDrag = new Function();
},
start : function(e)
{
var o = Drag.obj = this;
e = Drag.fixE(e);
var y = parseInt(o.vmode ? o.root.style.top : o.root.style.bottom);
var x = parseInt(o.hmode ? o.root.style.left : o.root.style.right );
o.root.onDragStart(x, y);
o.lastMouseX = e.clientX;
o.lastMouseY = e.clientY;
if (o.hmode) {
if (o.minX != null) o.minMouseX = e.clientX - x + o.minX;
if (o.maxX != null) o.maxMouseX = o.minMouseX + o.maxX - o.minX;
} else {
if (o.minX != null) o.maxMouseX = -o.minX + e.clientX + x;
if (o.maxX != null) o.minMouseX = -o.maxX + e.clientX + x;
}
if (o.vmode) {
if (o.minY != null) o.minMouseY = e.clientY - y + o.minY;
if (o.maxY != null) o.maxMouseY = o.minMouseY + o.maxY - o.minY;
} else {
if (o.minY != null) o.maxMouseY = -o.minY + e.clientY + y;
if (o.maxY != null) o.minMouseY = -o.maxY + e.clientY + y;
}
document.onmousemove = Drag.drag;
document.onmouseup = Drag.end;
return false;
},
drag : function(e)
{
e = Drag.fixE(e);
var o = Drag.obj;
var ey = e.clientY;
var ex = e.clientX;
var y = parseInt(o.vmode ? o.root.style.top : o.root.style.bottom);
var x = parseInt(o.hmode ? o.root.style.left : o.root.style.right );
var nx, ny;
if (o.minX != null) ex = o.hmode ? Math.max(ex, o.minMouseX) : Math.min(ex, o.maxMouseX);
if (o.maxX != null) ex = o.hmode ? Math.min(ex, o.maxMouseX) : Math.max(ex, o.minMouseX);
if (o.minY != null) ey = o.vmode ? Math.max(ey, o.minMouseY) : Math.min(ey, o.maxMouseY);
if (o.maxY != null) ey = o.vmode ? Math.min(ey, o.maxMouseY) : Math.max(ey, o.minMouseY);
nx = x + ((ex - o.lastMouseX) * (o.hmode ? 1 : -1));
ny = y + ((ey - o.lastMouseY) * (o.vmode ? 1 : -1));
if (o.xMapper) nx = o.xMapper(y)
else if (o.yMapper) ny = o.yMapper(x)
Drag.obj.root.style[o.hmode ? "left " : "right "] = nx + "px ";
Drag.obj.root.style[o.vmode ? "top " : "bottom "] = ny + "px ";
Drag.obj.lastMouseX = ex;
Drag.obj.lastMouseY = ey;
Drag.obj.root.onDrag(nx, ny);
return false;
},
end : function()
{
document.onmousemove = null;
document.onmouseup = null;
Drag.obj.root.onDragEnd( parseInt(Drag.obj.root.style[Drag.obj.hmode ? "left " : "right "]),
parseInt(Drag.obj.root.style[Drag.obj.vmode ? "top " : "bottom "]));
Drag.obj = null;
},
fixE : function(e)
{
if (typeof e == 'undefined ') e = window.event;
if (typeof e.layerX == 'undefined ') e.layerX = e.offsetX;
if (typeof e.layerY == 'undefined ') e.layerY = e.offsetY;
return e;
}
};
</script>
<body>
<input type= "submit " text= "value " value= "提交 " onClick= "setConfig(); ">
</body>
</html>