javascript - Variable URL redirects by value of html contact form -


due requirement of our crm, have deal basic html contact form (short version):

<form id="contact_form" method="post" name="contact_form"> <p><strong>select white paper have:</strong></p> <label for="paper" class="mandatory">   <span>white paper<select id="paper" name="paper" required>     <option selected="selected" value="">-please select-</option>     <option value="a">a</option>     <option value="b">b</option>     <option value="c">c</option>   </select> </label> <input id="redirect_url" type="hidden" name="redirect_url" value="" /> <input class="download" onclick="submit_form();" type="submit" value="download" /> </form>

is there possibility write variable redirect_url specified value?

a= "http://example.com/a" / b= "http://example.com/b" etc.

should try jquery var or document.getelementbyid?

very basic question, know, started ambitions towards javascript.

jquery:

var newurl = "http://example.com/b"; $("#redirect_url").val(newurl);

javascript:

var newurl = "http://example.com/b"; document.getelementbyid("redirect_url").value = newurl;

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