A very interesting problem for a simple requirement and not easily available solution:
How would I create a button which will allow the user to specify where the file to be downloaded will be saved to??
The actual problem is that I have multiple drop down buttons (for multiple files) with each of the drop down button containing an option to save to a local folder. Once the user specifies the local path for each of these files and clicks the submit button. All of the files will be saved automatically to these locations.
You can't write to the client machine from within a web application. This includes creating folders and downloading files.
The users' browser will allow them to control where any files that they choose to download will go. All of the popular browsers give the user the ability to create a directory from the download dialog window.