// JavaScript Document 
document.body.oncopy=function()    
{
	event.returnValue = false;
     var txt1 = document.selection.createRange().text;
     var txt2 = "本文来自lewuyou.com";
     var txt3 = "本文地址" + location.href;
     clipboardData.setData('Text', txt1 + txt2 + '\r\n' + txt3);
}