JS 点击复制剪切板内容(IE8、IE9、Firefox4测试支持)

function copyToClipboard(txt) {  
     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( " 被浏览器拒绝！\n请在浏览器地址栏输入'about:config'并回车\n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( " 复制成功 " )  
    }  
} 

 

<textarea id="inputTest" name="inputTest" rows="4" cols="130"  onclick="copyToClipboard($('#inputTest').val())">{my:$url}</textarea>