Question

I have implemented addthis javascript in my code.

But if I open my page in IE 7, it will not work.

So, I am trying to add that script only if the browser is not IE 7

First I wrote this code and it works.

<!--[if IE 7]>
<script type="text/javascript">
alert('hihi');
</script>
<![endif]-->

That code works and the page will show hihi in IE 7 but not in other browsers.

Now, I want to reverse this and make the page show hihi only if the browser is not IE 7

I tried

<!--[if !IE 7]>
<script type="text/javascript">
alert('hihi');
</script>
<![endif]-->

But it doesn’t work. Is there any other way?

Thanks.

Answer 1

The problem with your code is that to non-IE browsers, it just looks like a normal HTML comment and therefore the script is not included. One option is to create a variable that you check against in your script:

<script type="text/javascript">
    var isIe7OrLower = false;
</script>

<!--[if lte IE 7]>
<script type="text/javascript">
    isIe7OrLower = true;
</script>
<![endif]-->

<script type="text/javascript">
    alert("IE 7 or lower: " + isIe7OrLower);
</script>