从文本框打开文件而不重新加载页面

What I've had in the past is some java that creates an array of servers on our network. On an intranet page the user would login and then start typing into a textbox which uses the java and array to give a list of valid sites as they type. They would then select the server they want (or finish typing) and click the "Start RDP" button which would post the form to the same page (gets checked for validity) and starts a download of a .rdp file for them to run which obviously starts mstsc.exe. Now I was wondering if it's possible to use jquery or something to dynamically run a perl script to check the form has a valid request and then start the download (for running by the user) of the RDP file from a link like \someserver\somehiddenshare$\servername.rdp. The form I'm using is as follows however I appreciate this would change:What I've had in the past is some java that cre