<script type="text/javascript">
var Class = {
//创建类
create: function () {
return function () {
this.initialize.apply(this, arguments);
};
}
};

var $A = function (a) {
//转换数组
return a ? Array.apply(null, a) : new Array;
};

var $ = function (id) {
//获取对象
return document.getElementById(id);
};

Object.extend = function (a, b) {
//追加方法
for (var i in b) a[i] = b[i];
return a;
};

Object.extend(Object, {

addEvent : function (a, b, c, d) {
//添加函数
if (a.attachEvent) a.attachEvent(b[0], c);
else a.addEventListener(b[1] || b[0].replace(/^on/, ""), c, d || false);
return c;
},

delEvent : function (a, b, c, d) {
if (a.detachEvent) a.detachEvent(b[0], c);
else a.removeEventListener(b[1] || b[0].replace(/^on/, ""), c, d || false);
return c;
},

reEvent : function () {
//获取Event
return window.event ? window.event : (function (o) {
do {
o = o.caller;
} while (o && !/^\[object[ A-Za-z]*Event\]$/.test(o.arguments[0]));
return o.arguments[0];
})(this.reEvent);
}

});

Function.prototype.bind = function () {
//绑定事件
var wc = this, a = $A(arguments), o = a.shift();
return function () {
wc.apply(o, a.concat($A(arguments)));
};
};


var Table = Class.create();

Table.prototype = {

initialize : function () {
//初始化
var wc = this;
wc.cols = new Array; //创建列
},

addCols : function (o) {
//添加列
var wc = this, cols = wc.cols, i = cols.length;
return cols[i] = {
id : i, div : o, rows : new Array, //创建行
addRow : wc.addRow, chRow : wc.chRow, inRow : wc.inRow, delRow : wc.delRow
};
},

addRow : function (o) {
//添加行
var wc = this, rows = wc.rows, i = rows.length;
return rows[i] = {
id : i, div : o, cols : wc
};
},

inRow : function (a, b) {
//插入行
var wc = b.cols = this, rows = wc.rows, i;
if (a < rows.length) {
for (i = a ; i < rows.length ; i ++) rows[i].id ++;
rows.splice(a, 0, b);
b.id = a;
return b;
} else {
b.id = rows.length;
return rows[b.id] = b;
}
},

delRow : function (a) {
//删除列
var wc = this, rows = wc.rows, i, r;
if (a >= rows.length) return;
r = rows[a];
rows.splice(a, 1);
for (i = a ; i < rows.length ; i ++) rows[i].id = i;
return r;
}
};
var CDrag = Class.create();

CDrag.IE = /MSIE/.test(window.navigator.userAgent);

CDrag.prototype = {

initialize : function () {
//初始化成员
var wc = this;
wc.table = new Table; //建立表格对象
wc.iFunc = wc.eFunc = null;
wc.obj = { on : { a : null, b : "" }, row : null, left : 0, top : 0 };
wc.temp = { row : null, div : document.createElement("div") };
wc.temp.div.setAttribute(CDrag.IE ? "className" : "class", "CDrag_temp_div");
wc.temp.div.innerHTML = "&nbsp;";
},

reMouse : function (a) {
//获取鼠标位置
var e = Object.reEvent();
return {
x : document.documentElement.scrollLeft + e.clientX,
y : document.documentElement.scrollTop + e.clientY
};
},

rePosition : function (o) {
//获取元素绝对位置
var $x = $y = 0;
do {
$x += o.offsetLeft;
$y += o.offsetTop;
} while ((o = o.offsetParent) && o.tagName != "BODY");
return { x : $x, y : $y };
},

sMove : function (o) {
//当拖动开始时设置参数

var wc = this;
if (wc.iFunc || wc.eFinc) return;

var mouse = wc.reMouse(), obj = wc.obj, temp = wc.temp, div = o.div, position = wc.rePosition(div);

obj.row = o;
obj.on.b = "me";
obj.left = mouse.x - position.x;
obj.top = mouse.y - position.y;

temp.row = document.body.appendChild(div.cloneNode(true)); //复制预拖拽对象

with (temp.row.style) {
//设置复制对象
position = "absolute";
left = mouse.x - obj.left + "px";
top = mouse.y - obj.top + "px";
zIndex = 100;
opacity = "0.3";
filter = "alpha(opacity:30)";
}

with (temp.div.style) {
//设置站位对象
height = div.clientHeight + "px";
width = div.clientWidth + "px";
}


/*div.parentNode.insertBefore(temp.div, div);
div.style.display = "none"; //隐