Search form code with options and hidden filed problem

Hello,

I am hoping someone can help me with following search form.

As you can see I have created a form but I don't know how to fix the coding so when a user select a category it will add a different hidden filed for that option for example:
When the user selects category "Men" the hidden filed

Code:

---

<INPUT TYPE="HIDDEN" NAME="REFERRER" VALUE="http://men.com/acatalog/">

---

automaticly will be added the search



and when the user selects category "Kids" the hidden filed

Code:

---

<INPUT TYPE="HIDDEN" NAME="REFERRER" VALUE="http://kids.com/acatalog/">

---

automaticly will be added to the search



and so on...

Here is my form coding I am using:

Code:

---

<form name="simplesearch" method="get" action="" onsubmit="ssite=document.getElementById('sitelist');this.action=ssite.options[ssite.selectedIndex].value;return true;">                       
                <input type="hidden" name="page" value="search" />
        <input type="hidden" name="PR" value="-1" />
        <input type="hidden" name="TB" value="A" />
        <input type="hidden" name="NOLOGIN" value="1" /><input align="top" class="main_search_box" name="SS" type="text" value="search for ..." onfocus="this.value='';">
Search within:
<select id="sitelist">
<option value="">Select Catagory</option>
<option value="http://kids.com/cgi-bin/ss000001.pl">kids</option>
<option value="http://men.com/cgi-bin/ss000001.pl">men</option>
<option value="http://women.com/cgi-bin/ss000001.pl">women</option>
</select><input type="submit" class="button" name="ACTION" value="Go!">
</form>

---

Also I have one more question how do I make the "Select Catagory" a Must Choose and if not chosen to give message that say"Please Select a Category"


Thank you in advance for any help you can give me...
I am a bigginer so please go easy on me :)

That's impressive, a thread with a 5 star rating when it hasn't even had any replies yet and isn't even in the right forum :rolleyes:

@emb: javascript is not java, you need the client side scripting forum. I'll ask the mods to move it for you.

Thank you, sorry about that did not see it Java Programming...

if your hidden input field is in the form then you can use javascript code like

Code:

---

ssite=document.getElementById('sitelist');
 document.simplesearch.REFERRER.value = ssite.options[ssite.selectedIndex].value;

---

Make sure you do this before the form is submitted. Else the value of hidden element will not be set.

If your hidden element is not in the form, add an 'id' attribute to it and refer to it as document.getElementById('REFERRER');

Hope this helps.

And this for sure needs to be in javascript forums. Nothing to do with java except for the name.substring()!