div 光标处插入内容

var Manager = {
insertHtml: function(html, type) {

var lastMemo = document.getElementById("memo"),
lastEditor = document.getElementById("reditor");

type = type || 'memo';

var control = type == 'memo' ? lastMemo : lastEditor;

if(!control) return;

control.focus();

var selection = window.getSelection ? window.getSelection() : document.selection,

range = selection.createRange ? selection.createRange() : selection.getRangeAt(0);

//判断浏览器是ie，但不是ie9以上
var browser = checkBrowser().split(":");
var IEbrowser = checkBrowser().split(":")[0];
var IEverson = Number(checkBrowser().split(":")[1]);

if(IEbrowser == "IE" && IEverson < 9) {

range.pasteHTML(html);

} else {

var node = document.createElement('span');

node.innerHTML = html;

range.insertNode(node);

selection.addRange(range);

}

},

insertImg: function() {
var img = "<img src='http://www.baidu.com/img/bdlogo.gif'/>";
this.insertHtml(img, 'editor');
}

}

function checkBrowser() {
var browserName = navigator.userAgent.toLowerCase();
//var ua = navigator.userAgent.toLowerCase();
var Sys = {};
var rtn = false;

if(/msie/i.test(browserName) && !/opera/.test(browserName)) {
strBrowser = "IE: " + browserName.match(/msie ([d.]+)/)[1];
rtn = true;
//return true;
} else if(/firefox/i.test(browserName)) {
strBrowser = "Firefox: " + browserName.match(/firefox/([d.]+)/)[1];;
//return false;
} else if(/chrome/i.test(browserName) && /webkit/i.test(browserName) && /mozilla/i.test(browserName)) {
strBrowser = "Chrome: " + browserName.match(/chrome/([d.]+)/)[1];
//return false;
} else if(/opera/i.test(browserName)) {
strBrowser = "Opera: " + browserName.match(/opera.([d.]+)/)[1];
//return false;
} else if(/webkit/i.test(browserName) && !(/chrome/i.test(browserName) && /webkit/i.test(browserName) && /mozilla/i.test(browserName))) {
strBrowser = "Safari: ";
//return false;
} else {
strBrowser = "unKnow,未知浏览器 ";
//return false;
}
strBrowser = strBrowser;
//alert(strBrowser)
return strBrowser;
}

、、、、、、、

memo 不用

reditor div --id;

Manager.insertImg();//调用