js如何动态创建一个新的标签

浏览数：15 / 时间：2015年06月09日

　　　　　　  var 
DS;
            DS = CallIVRAjaxClass.GetBranchCallCount().value;
            var 
obj = {};
            obj.branch = "_branch";
            obj.count = "_count";
            if 
(DS != null 
&& typeof 
(DS) == "object" 
&& DS.Tables != null) {
                if 
(DS.Tables[0].Rows.length > 0) {
                    for 
(var 
i = 0; i < DS.Tables[0].Rows.length; i++) {
 
                        var 
MapDiv = document.getElementById("MapDiv");
                        var 
MapImg = document.createElement("img");//开始创建一个img标签
                        MapImg.name = "imgMap";//开始赋值一些必要属性，其中alt和src必须要有
                        MapImg.alt = "";
                        MapImg.src = "";
                        MapImg.style.position = "absolute";//由于我是用于图片叠加，所以用了绝对定位，
                        MapDiv.appendChild(MapImg);//将这个创建好的追加到div容器里面
 
 
 
                        var 
_count = DS.Tables[0].Rows[i][obj.count];  //去处当前obj.count值的数据
                        var 
ImagePath = "image/" 
+ DS.Tables[0].Rows[i][obj.branch] + "_";    //提前设置好路径和图片前半部分的名字
                        var 
_Map = document.getElementsByName("imgMap")[i];   //根绝name值找到当前img标签
<br>　　　　　　　　　　　　　　//下面判断当前取出来的值来确定图片。注：png格式才可以有透明属性
                        var 
str = "";
                        if 
(_count == 0) {
                            //_Map.src = ImagePath +
                            str = i + ".png";
                        } else 
if (_count >= 1 && _count <= 5) {
 
                            str = i + ".png";
 
                        } else 
if (_count >= 6 && _count <= 10) {
                            str = i + ".png";
 
 
                        } else 
if (_count >= 11 && _count <= 20) {
                            str = i + ".png";
 
                        } else 
if (_count >= 21 && _count <= 30) {
                            str = i + ".png";
 
 
                        } else 
{
                            str = i + ".png";
 
                        }
 
//                        //测试留
//                        str = "";
 
                        _Map.src = ImagePath + str;//循环给img标签src属性值，由于我要放的图片是部分透明的，所有叠加在一起是刚刚好
                    }
                }
            }