jquery: How can I reset the document scrollbar when I append a layer over the document?

Question

How can I reset the document scrollbar when I append a layer over the document?

For instance, it is like the facebook page when you have a very long document and you nee

Answer 1

Facebook use the css property: overflow

The image container has the following css properties:

position: fixed;
top: 0;
left: 0;
width: 100%;
height: 100%;
overflow-x: auto;
overflow-y: scroll;

This will create the effect you are seeking.