How to get imagepath and its name from database using javascript

You can use JQuery to do an Ajax request to the web server, like:

 $.ajax({
    url: "ImageRetriever.java",
    type: "GET",
    data {
        imageId: 1234
    },
    success: function(result) {
        $("#imagePath").text(result);
    }
});

And then, in the server side, you have a Java servlet / PHP script / C# class that gets the image id, queries the database using that id, and returns the image path. Now, I would post this as well, but without further details (your server side language, how the database looks like, etc) I can't do that, as I'm basically blind