Declare value of variable and pass it to form value. (modal window/jquery)

Hi,

I am trying to create a modal window to insert a record in my page.
I can call the modal window just fine. This is the link to the code:

http://jsfiddle.net/amucino/eswvwhoe/8/

 Unfortunately when running it in jsfiddle its not showing the actual value of the parameter I am passing (See screenshot of local code). Here it works fine. And shows : 786

 the code to show it though is:  <div class="modal-body edit-content"></div>

 I am not familiar with jquery so I am not sure how to save that value into a variable I can then use to make my own code and call it for example using :  <%=request("variablenm")%>

 Then I can post the form to page.asp where it will be processed.  So it looks like all I am missing is simply saving the value of the parameter into a variable.

And also as you can see there is a form, a target in the form and a submit button.
The close button works but when I click 'submit' nothing happens.
modal-screenshot.PNG