Javascript + browsers question

[psychological]

Hey everyone, im beginning to learn javascript/c++ and programming in general, however I was trying to wrap my head around javascript today. I was wondering if anyone could explain to me how JavaScript can be used to display things differently in two different browsers?

Thanks for any help, helping me to understand this!

[v0id]

You determine which browser the user are running, and then you show something for the user if he uses a specific browser. There's tons of material on the net about determining browsers.

[csmith1991]

Somthing like this allows you to detect the browser that is being used and display unique content depending on the browser.

<script>

var BrowserName = navigator.appName
if (BrowserName == "Netscape")
{
alert("Your using Netscape");
}
else
{
if (browserName == "Microsoft Internet Explorer")
{
alert("Your using IE");
}
else
{
alert("What ARE you browsing with here?");
}
}

</script>