Alert from JSP

I want to alert the user for form level validations in a JSP as is done in Javascript. Could somebody tell me how?
ssindhuAsked:
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ovidiucraciunCommented:
as far as I no, with JSP you can create dinamicaly html pages as response.
I sugest to first write your html page that makes the alertion and after that to send it to the client in order to load the page with alert code (JavaScript)
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ssindhuAuthor Commented:
Thanks it works .
I created a html page with alerts using javascript(as usual) then added that to JSP.
Thanks.
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diegojimenezCommented:
You can make all the options that you want with Html and after you can insert de java code. You must know that the java code is allways compiled in the server , and the javaScript code is compiled in the navigator.
then if you have
<%
    ----java code----
%>
<script language="JavaScript">

       function hello(){
              alert("hello");
      }
</script>
when you'll call this function the alert will be execute.
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