How to Apply OpenFileDialog Function to a WebApplication

I am devoloping a Web Application, in which one Page has some neccessity that User should select any folder in the System and for ex if he selects ex:D:xyz, then this Path should be Saved in Database, I have written the Code for Storing in to Database and Remaining Every thing. But actually i think that if it is like a Browse Button click function to select the Folder, what i have made is, as i dont know how to make it in Web Application simply i used a textbox to be able to user to type the Path. Can, any one help me how to apply the Open File Dialog Functionality in a Web Page?