腳本獲取網頁中選中文字
var Word = document.selection.createRange().text;
獲取選中文字所在的句子
var range =  document.selection.createRange();
range.expand("sentence");
var sentence = range.text;

給IE右鍵菜單添加菜單項參見http://www.codePRoject.com/jscript/CopyasHTML.asp
http://m.survivalescaperooms.com/zuolun/archive/2006/12/04/580998.html