层拖拽问题请教高手

直接分几个部分来拖就行了不要在div上面在放几个div拖

给你一个拖拽类/**************************************************
* dom-drag.js
* 03.25.2008
**************************************************
* 10.28.2001 - fixed minor bug where events
* sometimes fired off the handle, not the root.
**************************************************/var Drag = { obj : null, init : function(o, oRoot, minX, maxX, minY, maxY, bSwapHorzRef, bSwapVertRef, fXMapper, fYMapper)
{
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;
}
};

http://www.cnblogs.com/cloudgamer/archive/2008/07/21/1247267.html
这里也有一个拖放程序
参考一下

这个适合你，自己改改，功能是实现了的http://country.lvyou168.cn/flashwariii/3div.html

给你一个拖动布局自己研究，不懂的地方可以m我<html><head><title>DRAG the DIV</title><meta http-equiv="Content-Type" content="text/html; charset=gb2312"><style>*{font-size:12px}.dragTable{ font-size:12px; border-top:1px solid #3366cc; margin-bottom: 10px; width:100%; background-color:#FFFFFF;}td{vertical-align:top;}.dragTR{ cursor:move; color:#7787cc; background-color:#e5eef9; height:20px; padding-left:5px; font-weight:bold;}#parentTable{ border-collapse:collapse; letter-spacing:25px;}</style><script defer>/****JoeLee************E-MAIL:[email protected]****<a class='Channel_KeyLink' href='http://www.51it.org/school/tools/tongxun/qq/index.html'>QQ</a>:48293707*****11:09 2006-2-9******/ var Drag={
　　dragged:false, ao:null, tdiv:null,dragStart:function(){ Drag.ao=event.srcElement; if((Drag.ao.tagName=="TD")||(Drag.ao.tagName=="TR")){ Drag.ao=Drag.ao.offsetParent; Drag.ao.style.zIndex=100; }
Drag.dragged=true; Drag.tdiv=document.createElement("div"); Drag.tdiv.innerHTML=Drag.ao.outerHTML; Drag.ao.style.border="1px dashed red"; Drag.tdiv.style.display="block"; Drag.tdiv.style.position="absolute"; Drag.tdiv.style.filter="alpha(opacity=70)"; Drag.tdiv.style.cursor="move"; Drag.tdiv.style.border="1px solid #000000"; Drag.tdiv.style.width=Drag.ao.offsetWidth; Drag.tdiv.style.height=Drag.ao.offsetHeight; Drag.tdiv.style.top=Drag.getInfo(Drag.ao).top; Drag.tdiv.style.left=Drag.getInfo(Drag.ao).left; document.body.appendChild(Drag.tdiv); Drag.lastX=event.clientX; Drag.lastY=event.clientY; Drag.lastLeft=Drag.tdiv.style.left; Drag.lastTop=Drag.tdiv.style.top;}, draging:function(){//重要:判断MOUSE的位置 if(!Drag.dragged||Drag.ao==null)return; var tX=event.clientX; var tY=event.clientY; Drag.tdiv.style.left=parseInt(Drag.lastLeft)+tX-Drag.lastX; Drag.tdiv.style.top=parseInt(Drag.lastTop)+tY-Drag.lastY; for(var i=0;i<parentTable.cells.length;i++){ var parentCell=Drag.getInfo(parentTable.cells[i]); if(tX>=parentCell.left&&tX<=parentCell.right&&tY>=parentCell.top&&tY<=parentCell.bottom){ var subTables=parentTable.cells[i].getElementsByTagName("table"); if(subTables.length==0){ if(tX>=parentCell.left&&tX<=parentCell.right&&tY>=parentCell.top&&tY<=parentCell.bottom){ parentTable.cells[i].appendChild(Drag.ao); } break; } for(var j=0;j<subTables.length;j++){ var subTable=Drag.getInfo(subTables[j]); if(tX>=subTable.left&&tX<=subTable.right&&tY>=subTable.top&&tY<=subTable.bottom){ parentTable.cells[i].insertBefore(Drag.ao,subTables[j]); break; }else{ parentTable.cells[i].appendChild(Drag.ao); } } } }}, dragEnd:function(){ if(!Drag.dragged)return; Drag.dragged=false; Drag.mm=Drag.repos(150,15); Drag.ao.style.borderWidth="0px"; Drag.ao.style.borderTop="1px solid #3366cc"; Drag.tdiv.style.borderWidth="0px"; Drag.ao.style.zIndex=1;},getInfo:function(o){//取得坐标 var to=new Object(); to.left=to.right=to.top=to.bottom=0; var twidth=o.offsetWidth; var theight=o.offsetHeight; while(o!=document.body){ to.left+=o.offsetLeft; to.top+=o.offsetTop; o=o.offsetParent; } to.right=to.left+twidth; to.bottom=to.top+theight; return to;},repos:function(aa,ab){ var f=Drag.tdiv.filters.alpha.opacity; var tl=parseInt(Drag.getInfo(Drag.tdiv).left); var tt=parseInt(Drag.getInfo(Drag.tdiv).top); var kl=(tl-Drag.getInfo(Drag.ao).left)/ab; var kt=(tt-Drag.getInfo(Drag.ao).top)/ab; var kf=f/ab; return setInterval(function(){if(ab<1){ clearInterval(Drag.mm); Drag.tdiv.removeNode(true); Drag.ao=null; return; } ab--; tl-=kl; tt-=kt; f-=kf; Drag.tdiv.style.left=parseInt(tl)+"px"; Drag.tdiv.style.top=parseInt(tt)+"px"; Drag.tdiv.filters.alpha.opacity=f; },aa/ab)}, inint:function(){//初始化 for(var i=0;i<parentTable.cells.length;i++){ var subTables=parentTable.cells[i].getElementsByTagName("table"); for(var j=0;j<subTables.length;j++){ if(subTables[j].className!="dragTable")break; subTables[j].rows[0].className="dragTR"; subTables[j].rows[0].attachEvent("onmousedown",Drag.dragStart); } } document.onmousemove=Drag.draging; document.onmouseup=Drag.dragEnd;}//end of Object Drag}Drag.inint();function _show(str){ var w=window.open('',''); var d=w.document; d.open(); str=str.replace(/=(?!")(.*?)(?!")( |>)/g,"=\"$1\"$2"); str=str.replace(/(<)(.*?)(>)/g,"<span style='color:red;'><$2></span><br />"); str=str.replace(/\r/g,"<br />\n"); d.write(str);}</script></head><body><table border="0" cellpadding="0" cellspacing="10" width="100%" height=500 id="parentTable"><tr > <td width="25%" valgin="top"> <table border=0 class="dragTable" cellspacing="0"> <tr> <td><b>GMAIL</b></td> </tr> <tr> <td>暂时无法显示GMAIL内容</td> </tr> </table><table border=0 class="dragTable" cellspacing="0"> <tr> <td>新浪体育</td> </tr> <tr> <td>解剖威队独门利器FW28 2万转引擎匹配超级变速器颁奖：辛吉斯欣喜能以冠军起步<br/> 印度搭档创下纪录法新社前瞻冬奥短道速滑：中韩唱主角美加施冷箭</td> </tr> </table> <table border=0 class="dragTable" cellspacing="0"> <tr> <td>焦点</td> </tr> <tr> <td>京广线中断4小时20临客返汉晚点中国<a class='Channel_KeyLink' href='http://www.51it.org/news/index.html'>新闻</a>网-湖北分社 - 所有 235 相关报道 »哈马斯已有总理人选解放日报报业集团 - 所有 489 相关报道 »陈水扁是两岸关系麻烦制造者武汉晨报 - 所有 179 相关报道 »</td> </tr> </table> </td> <td width="50%"> <table border=0 class="dragTable" cellspacing="0"> <tr> <td>中关村在线</td> </tr> <tr> <td>新年行情速递双敏板卡低价推荐终于等到了，映泰6600GT一降降一百罗技G15游戏键盘热力促销，代购价仅529元 </td> </tr> </table></td> <td width="25%"> <table border=0 class="dragTable" cellspacing="0"> <tr> <td>网易商业</td> </tr> <tr> <td>上海GDP增幅去年出现回落应对反倾销中国鞋企联手对抗欧盟尹家绪操盘南方汽车长安谋求曲线整体境外上市</td> </tr> </table> <table border=0 class="dragTable" cellspacing="0"> <tr> <td>黑可天下</td> </tr> <tr> <td>上海GDP增幅去年出现回落应对反倾销中国鞋企联手对抗欧盟尹家绪操盘南方汽车长安谋求曲线整体境外上市</td> </tr> </table> </td></tr></table><input type="button" value="SHOW" onClick="_show(document.documentElement.innerHTML)" /></body></html>

调试易

层拖拽问题请教高手

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