Need script to detect browser then do an action

My site breaks in IE6 but works well with IE7. I need a javascript that will check if any visitor is using IE6 then display a message. I'm a completely noob in programming so please don't refer me to site that teach you to do it. I need a ready made script. The script will be uploaded to the server and a code between <script> tags will be placed on the page.

I plan to put the message in a widget that will displayed at the top of the article. The widget should run only when the browser is IE6.

Please help me.

 

Try this

<script type="text/javascript">
if (document.all && !window.opera) { // IE browser
if (window.XMLHttpRequest) {
alert('IE7');
}
else {
alert('IE6 or lower');
}
}
</script>

 

Instead of the alert box, can't we just display a text in the body of the page?

 

Why don't you use one that doesn't use javascript at all?
<!--[if IE 6]>
Put the message for IE6 users here
<![endif]-->

 

@dancom96: I want the message to be seen only by ie6 users. How to do that without javascript? I want the code. Sorry, for beign so dumb.

 

Ok. I got it. Thanks.