jQ, On dropdownlist change/selection, get request on same url with ?somekey=selected-item-value

When someone selects a drop down list item, I want to redirect to the same page but with the query string set with

www.example.com/?somekey=selected-value

where selected-value is the numeric value of the option.

I am using jQ开发者_开发知识库uery if that makes it easier.

Use the onchange event in the select element:

<select ... onchange="window.location.href='?somekey='+$(this).val();">

Or if you want to hook it up using jQuery:

$(function(){
  $('#idOfTheSelect').change(function(){
    window.location.href = '?somekey=' + $(this).val();
  });
});

Absolutely. Heres some code:

<select id="redirect">
    <option value="1">One</option>
    <option value="2">Two</option>
    <option value="3">Three</option>
</select>

$(document).ready(function() {
    $("#redirect").change(function() {
       document.location = "product.html?id=" + $(this).val();
    });
});