JavaScript实现复制文章自动添加版权

<script type="text/javascript"> document.body.oncopy = function(){   setTimeout(     function (){     var text = clipboardData.getData("text");     if(text){       text = text + "/r/n本文来自: (www.VeVB.COm) 详细出处参考："+location.href; clipboardData.setData("text", text);     }   },100) } </script> 

$("body").bind('copy', function (e) { if (typeof window.getSelection == "undefined") return; //IE8 or earlier...  var body_element = document.getElementsByTagName('body')[0]; var selection = window.getSelection();  //if the selection is short let's not annoy our users if (("" + selection).length < 30) return; //create a div outside of the visible area //and fill it with the selected text var newdiv = document.createElement('div'); newdiv.style.position = 'absolute'; newdiv.style.left = '-99999px'; body_element.appendChild(newdiv); newdiv.appendChild(selection.getRangeAt(0).cloneContents());  //we need a <pre> tag workaround //otherwise the text inside "pre" loses all the line breaks! if (selection.getRangeAt(0).commonAncestorContainer.nodeName == "PRE") { newdiv.innerHTML = "<pre>" + newdiv.innerHTML + "</pre>"; }  newdiv.innerHTML += "<br /><br />Read more at: <a href='" + document.location.href + "'>" + document.location.href + "</a> © MySite.com";   selection.selectAllChildren(newdiv); window.setTimeout(function () { body_element.removeChild(newdiv); }, 200);});