Jsp and javascript

[Ed]

Hi,
I have a problem, I don't know how can I do that.
I have a jsp file, that it has a javascript function and I want recollect the information that it returns to me

<script language="JavaScript">
<!--
	function browser()
	{
		var browser= navigator.appName
		var option = 0;
		if (browser== "Microsoft Internet Explorer")
			return option = 0;
		else
			return option = 1;
	}
//-->
</script>

I tried like this but it doesn't work

<% int option=browser();
					if(option==1){
				%>

[Peter]

I give you an example

function oBrowser( ) {
this.name= navigator.appName;
}

browser= new oBrowser();

[Jack]

please read this article
How to Detect Internet Explorer