js复制链接到剪贴板

第一种方式：（不兼容chrome,ie可以）
引用：http://bibo531651225.iteye.com/blog/1753160
  <script>
  //复制链接
    function copyToClipboard() {  
    		var txt = $("#aflink").val();
    	     if(window.clipboardData) {   
    	             window.clipboardData.clearData();   
    	             window.clipboardData.setData("Text", txt);   
    	     } else if(navigator.userAgent.indexOf("Opera") != -1) {   
    	          window.location = txt;   
    	     } else if (window.netscape) {   
    	          try {   
    	               netscape.security.PrivilegeManager.enablePrivilege("UniversalXPConnect");   
    	          } catch (e) {   
    	               alert("您的浏览器设置不允许快捷拷贝，请直接复制页面里的链接");      
    	          }   
    	          var clip = Components.classes['@mozilla.org/widget/clipboard;1'].createInstance(Components.interfaces.nsIClipboard);   
    	          if (!clip)   
    	               return;   
    	          var trans = Components.classes['@mozilla.org/widget/transferable;1'].createInstance(Components.interfaces.nsITransferable);   
    	          if (!trans)   
    	               return;   
    	          trans.addDataFlavor('text/unicode');   
    	          var str = new Object();   
    	          var len = new Object();   
    	          var str = Components.classes["@mozilla.org/supports-string;1"].createInstance(Components.interfaces.nsISupportsString);   
    	          var copytext = txt;   
    	          str.data = copytext;   
    	          trans.setTransferData("text/unicode",str,copytext.length*2);   
    	          var clipid = Components.interfaces.nsIClipboard;   
    	          if (!clip)   
    	               return false;   
    	          clip.setData(trans,null,clipid.kGlobalClipboard);   
    	          alert("复制成功！")   
    	     }   
    	}

    </script>
=======================
<input type="hidden" name="aflink" id="aflink" value="http://localhost:7001/OAForum/TopicServlet?doaction=findById&id=${topicBean.to.id}&isfront=true"/>
========================
 <a href="javascript:copyToClipboard();"><font color="yellow">复制链接</font></a>

第二种方式：（兼容ie\chrome）
//js,swf见附件

    <script type="text/javascript" src="<%=path %>/scripts/public/copylink/ZeroClipboard.js">
</script>

<script type="text/javascript">
var clip = null;
var clipBoardContent=this.location.href;
ZeroClipboard.setMoviePath("<%=path %>/scripts/public/copylink/ZeroClipboard.swf");
$(document).ready(function(){
clip = new ZeroClipboard.Client(); 
clip.setHandCursor(true); 
clip.setText(clipBoardContent); //link
clip.glue("copy-button");
clip.addEventListener("complete", function(){
alert("代码已复制到剪贴板！");
});
});
</script>

<input type="button" value="复制链接" id="copy-button" />