<style>
.dragTable {
border-top: 1px solid #3366cc;
margin-bottom: 10px;
width: 100%;
background-color: #FFFFFF;
}
td {
vertical-align: top;
}
.dragTR {
cursor: move;
color: #7787cc;
text-decoration: underline;
background-color: #e5eef9;
padding: 10px 0 10px 5px;
font-weight: bold;
}
#parentTable {
border-collapse: collapse;
letter-spacing: 25px;
}
</style>
<script defer language="jscript">
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;
}else
return;
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);
}
function getBodyContent(){
alert(document.getElementById("contentBody").innerHTML);
}
</script>
HTML代码
<div id ="contentBody">
<table border="0" cellpadding="0" cellspacing="10" width="100%" id="parentTable">
<colgroup>
<col width="50%"/>
<col width="25%"/>
<col width="25%"/>
</colgroup>
<tr>
<td colspan="3">
<table border=0 class="dragTable" cellspacing="0">
<tr>
<td><b>这里可以做表头</b></td>
</tr>
<tr>
<td>放上一张图片</td>
<tr>
</table>
</td>
</tr>
<tr>
<td>
<table border=0 class="dragTable" cellspacing="0">
<tr>
<td><b>第一个栏目块标题</b></td>
</tr>
<tr>
<td>我什么也没看见</td>
<tr>
</table>
</td>
<td>
<table border=0 class="dragTable" cellspacing="0">
<tr>
<td><b>这里是第二个栏目块标题</b></td>
</tr>
<tr>
<td>我什么也没看见</td>
<tr>
</table>
</td>
<td>
<table border=0 class="dragTable" cellspacing="0">
<tr>
<td><b>不用问第三个标题</b></td>
</tr>
<tr>
<td>我什么也没看见</td>
<tr>
</table>
</td>
</tr>
</table>
</div>
<input type="button" value="显示代码" onclick="javascript:getBodyContent()">