// JScript File
//复制到剪贴板
function copyToClipboard(txt) {        
     if(window.clipboardData) {        
             window.clipboardData.clearData();        
             window.clipboardData.setData("Text", txt);   
             alert(txt+'已复制到剪贴板');     
     } else if(navigator.userAgent.indexOf("Opera") != -1) {        
          window.location = txt; 
          alert(txt+'已复制到剪贴板');              
     } else if (window.netscape) {        
          try {        
               netscape.security.PrivilegeManager.enablePrivilege("UniversalXPConnect");        
          } catch (e) {        
                alert("被浏览器拒绝！如果想启用该功能.<br />请在浏览器地址栏输入'about:config'然后将'signed.applets.codebase_principal_support'设置为'true'");        
          }        
          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(txt+'已复制到剪贴板');      
     }        
}