JavaScript / AJAX生成网址

I have no web developing experience at all so explanation with details would be appreciated! Let me know what other information if you think my questions is not clear.

I have a webpage, say the url looks like this:

www.mycompany.com/category1

And it contains a parametric search box. There is an apply button in the parametric search whose source code looks like this:

<input type="button" value="Apply" id="Button" class="button-link" style="color: rgb(0, 0, 0);">

It redirects you to another page after you click the apply button which contains the search results and the URL looks like:

http://www.mycompany.com/jsp/search/browse.jsp?N=2001109&No=0&getResults=true...

I took a look at the source code of the mycompany.com/category1 page and I cannot see the existence of the string '2001109' which looks like contains the information of my search..

I am wondering how is the URL generated?

It might be generated by JQuery/JavaScript/PHP..(I don't know any of these) and how could I locate the file which is used to generate the URL maybe using Chrome Web Developer Tools. Thanks a lot.

Your parametric search box will be in a html form tag <form> this is the default behavior of form if you don't specify the method attribute this will be assumed as the get method to request a server ,2001109 is the value of one of the <input> field within a form if you see the html of the form there will be an action attribute which tell where to send the form information which contains this http://www.mycompany.com/jsp/search/browse.jsp url as i said there was a get request method is used therefore all the information within input fields lie in the <form></form> will be appended in the url which commonly known as query string if your request method is defined as post then information within a form will not be appended in the url it will be in browser

form

html-get-vs-post

Query_string