如何禁用IE9的ShareThis？

Question

在IE9中，ShareThis小部件会导致严重的问题，所以我想在浏览器中禁用它。下面你可以看到ShareThis代码和我试图禁用它。为什么if语句不起作用？如何为IE9禁用此代码？我很感谢任何有用的意见或建议。

<script type="text/javascript">var switchTo5x=true;</script>
     <script type="text/javascript"
     src="http://w.sharethis.com/button/buttons.js"></script>
     <script type="text/javascript" src="http://s.sharethis.com/loader.js"></script>

     REST OF CODE

     <script>
     var options={ "publisher": "3662a59e-5e0d-4969-8567-735aca70d6d1",
     "position": "left", "ad": { "visible": false, "openDelay": 5,
     "closeDelay": 0}, "chicklets": { "items": ["facebook", "twitter",
     "linkedin", "email", "pinterest", "sharethis"]}};
     var st_hover_widget = new sharethis.widgets.hoverbuttons(options);
     </script>

下面是我用if语句禁用它的尝试。然而，ShareThis仍然会出现在IE9上。

 <script type="text/javascript">
 if (navigator.appName="Microsoft Internet Explorer")
 {
 }
 else
 {

 <script type="text/javascript">

 var switchTo5x=true;</script>

 <script type="text/javascript"
 src="http://w.sharethis.com/button/buttons.js"></script>
 <script type="text/javascript" src="http://s.sharethis.com/loader.js"></script>
 }
 </script>

 REST OF CODE

 if (navigator.appName="Microsoft Internet Explorer")
 {
 }
 else
 {
 <script>
 var options={ "publisher": "3662a59e-5e0d-4969-8567-735aca70d6d1",
 "position": "left", "ad": { "visible": false, "openDelay": 5,
 "closeDelay": 0}, "chicklets": { "items": ["facebook", "twitter",
 "linkedin", "email", "pinterest", "sharethis"]}};
 var st_hover_widget = new sharethis.widgets.hoverbuttons(options);
 </script>
 }
 </script>

Answer 1

您可以使用条件注释：

<!--[if !IE 9]>
<script src="...sharethis..."></script>
<![endif]-->

Answer 2

IE有一个叫做“条件注释”的“很棒的”功能:)

在您的例子中，下面的代码片段将禁止在高于8的IE版本中加载ShareThis代码。

<!--[if lt IE 9]> 
<script type="text/javascript" src="http://w.sharethis.com/button/buttons.js"></script> 
<script type="text/javascript" src="http://s.sharethis.com/loader.js"></script> 
<script> // .. rest of sharethis init code</script>
<![endif]-->