Sharing JavaScript variables with JSP

Question

Hello everyone --
I was pretty smug when I thought that I could store JavaScript variables in a hidden input parameter for the JSP to pick up.
When I run:
<script language=javascript>
if(confirm("Do you really want to delete this user?"))
   document.write("<input type=hidden name=confirmusr value=true>");
else
   document.write("<input type=hidden name=confirmusr value=false>");
</script>
<b>User input was <%= request.getParameterValues("confirmusr") %></b>I get: User input was null
I thought that at first I needed to escape the " in write(), but that wasn't it. Does anyone know why it seems that JS is not creating that hidden input type? Thanks in advance for any suggestions, Kwj.

Answer 1

You can do it this way:
<form name="myForm" etc etc>
etc
<input name="confirmUser" type="hidden" value="">
etc
<script language="javascript">
function onClickHandler() {
    if (confirm("Do you really want to delete this turkey?"))
        document.myForm.confirmUser.value = "true";
    else
        document.myForm.confirmUser.value = "false";
    document.myForm.submit();
</script>
etc
<input name="button" type="button" value="Delete Turkey" onClick="onClickHandler()">
etc
</form>
etc etc etc