Javascript 给String对象扩展HTML编码和解码的方法

了解基本先阅读这里：http://blog.csdn.net/xxd851116/archive/2009/06/01/4234518.aspx

String.prototype.HTMLEncode = function() { var temp = document.createElement ("div"); (temp.textContent != null) ? (temp.textContent = this) : (temp.innerText = this); var output = temp.innerHTML; temp = null; return output;}String.prototype.HTMLDecode = function() { var temp = document.createElement("div"); temp.innerHTML = this; var output = temp.innerText || temp.textContent; temp = null; return output;}