How to override variable parameter loaded from another script
<p>I have a script that loads the code dynamically. It is kind of a search engine. When I press a search button, the action gets triggered and a new page opens with many parameters.</p>

<p>I want to override one of the parameters generated with the script in the new URL. JS code is quite big and hard to read, but I have found the important part in the Firebug DOM editor.</p>

<p>This is the pattern of the URL generated when you perform the search:</p>

<pre><code>http://www.example.com/...?ParameterOne=123&amp;ParameterTwo=Two&amp;ThisParameter=Sth&amp;ParameterFour=Four...
</code></pre>

<p>What I want to edit is "ThisParameter" and change its value. This is the part edited in the DOM that does what I want:</p>

<pre><code>Foobar = {
_options: [],
...
var options = {"ParameterOne":123,"ParameterTwo":"Two","ThisParameter":"ABC","ParameterFour":Four,...}
...
</code></pre>

<p>And this is the output of "ThisParameter" when you choose "Copy path" in Firebug's DOM tab:</p>

<pre><code>_options[0].ThisParameter
</code></pre>

<p>I am wondering it this is possible at all. What makes me think that it is, is the fact that I can change this parameter in Firebug and it works perfectly. So, if Firebug can edit it, there should be a way to influence it with another script.</p>

<p>Looking forward to any suggestions, thank you in advance!</p>
