Including JavaScript into a JSP Page

Question

Hi,
How do i include a piece of JavaScript <SCRIPT> stuff into a JSP Page?
Right now i have an HTML Page that includes some <SCRIPT> code. Now many other HTML files use this piece of <SCRIPT> stuff. How do i remove it , put it in one place(I mean where to put it and what would that file be called) and in a JSP page call this <SCRIPT> code?
Please help . i'm pretty new to JSP and JavaScript.
Thanks in Advance.
Phani
/**** CODE
<SCRIPT language=javascript>
<!--
     if ((document.images) && ("Netscape" != navigator.appName) && (navigator.appVersion.indexOf('Mac') == -1))
     document.write("<LINK REL=\"stylesheet\" TYPE=\"text/css\" HREF=\"http://www.telia.se/tews/css/1.css\">");
     else if ((document.images) && ("Netscape" != navigator.appName) && (navigator.appVersion.indexOf('Mac') > 1))
     document.write("<LINK REL=\"stylesheet\" TYPE=\"text/css\" HREF=\"http://www.telia.se/tews/css/5.css\">");
     else if (("Netscape" == navigator.appName) && (parseInt(navigator.appVersion) == 4) && (navigator.appVersion.indexOf('Mac') == -1))
     document.write("<LINK REL=\"stylesheet\" TYPE=\"text/css\" HREF=\"http://www.telia.se/tews/css/2.css\">");
     else if (("Netscape" == navigator.appName) && (parseInt(navigator.appVersion) == 4) && (navigator.appVersion.indexOf('Mac') > 1))
     document.write("<LINK REL=\"stylesheet\" TYPE=\"text/css\" HREF=\"http://www.telia.se/tews/css/3.css\">");
     else if (("Netscape" != navigator.appName) && ("Microsoft Internet Explorer" != navigator.appName))
     document.write("<LINK REL=\"stylesheet\" TYPE=\"text/css\" HREF=\"http://www.telia.se/tews/css/6.css\">");
// -->
</SCRIPT>

Answer 1

Ok, first let us make clear the demarcation between java and javascript.
Java runs on the server, and produces an HTML page which is sent to the client.
That HTML page may contain javascript code on it to run on the client side.
As the page is loaded, javascript may be compiled/run on the client.
So you have some javascript code which you want to include on every page as template text?
I would do this in JSP by using the include directive to add that bit of template text to every single JSP page.
ie
header.jspf
<SCRIPT language=javascript>
<!--
if ((document.images) && ("Netscape" != navigator.appName) && (navigator.appVersion.indexOf('Mac') == -1))
document.write("<LINK REL=\"stylesheet\" TYPE=\"text/css\" HREF=\"http://www.telia.se/tews/css/1.css\">");
else if ((document.images) && ("Netscape" != navigator.appName) && (navigator.appVersion.indexOf('Mac') > 1))
document.write("<LINK REL=\"stylesheet\" TYPE=\"text/css\" HREF=\"http://www.telia.se/tews/css/5.css\">");
else if (("Netscape" == navigator.appName) && (parseInt(navigator.appVersion) == 4) && (navigator.appVersion.indexOf('Mac') == -1))
document.write("<LINK REL=\"stylesheet\" TYPE=\"text/css\" HREF=\"http://www.telia.se/tews/css/2.css\">");
else if (("Netscape" == navigator.appName) && (parseInt(navigator.appVersion) == 4) && (navigator.appVersion.indexOf('Mac') > 1))
document.write("<LINK REL=\"stylesheet\" TYPE=\"text/css\" HREF=\"http://www.telia.se/tews/css/3.css\">");
else if (("Netscape" != navigator.appName) && ("Microsoft Internet Explorer" != navigator.appName))
document.write("<LINK REL=\"stylesheet\" TYPE=\"text/css\" HREF=\"http://www.telia.se/tews/css/6.css\">");
// -->
</SCRIPT>
<noscript>
  // stuff here for when the browser does not support javascript
</noscript>And then in every jsp page
<%@ page include="header.jspf" %>
// rest of the JSP pageThe file "header.jspf" will be included with every jsp page served, and you only need to update that page in one place.
If you have a JSP2.0 container you can define a jsp prelude which will be the same as having the <%@ page include="header.jspf" %> on every page.
You do this in the web.xml file:
Something like this:
  <jsp-property-group>
     <url-pattern>*.jsp</url-pattern>
     <include-prelude>/WEB-INF/jspf/prelude1.jspf</include-prelude>
  </jsp-property-group>The specified file will be loaded into every JSP page without the JSP page having to define the import itself.
Hope this helps,
evnafets