Question

Actually, two questions:

• How can I create a modal popup with background color of gray?
• Also I need to create for a cover background color only to table itself. Not to overall page.

How do I do this using javascript and css?

Answer 1

Here is the HTML, which should probably be inserted with JS, and the styles should be in an external stylesheet.

<div style="background: gray; width: 200px; height: 200px; position: absolute; left: 50%; top: 50%; margin-left: -100px; margin-top: -100px" id="modal">I'm a modal</div>

Then, you could leverage jQuery to display it.

$('a.modal').bind('click', function(event) { 
    event.preventDefault();
    $('#modal').fadeIn(800);
});

This is only a start, you’ll want to learn from this and build upon it. For example, the script should check is(':hidden') and show, and if not then fadeOut(800) or similiar.