JS-scroll

 

 

scroll property

Attributes
scrollWidth / scrollHeight	Get the scroll bar elements with width / height
scrollTop / scrollLeft	Get top / left beyond the element portion

body compatibility problems

Body of compatibility issues scrollTop / scrollLeft, in addition to other elements of the body without compatibility problems

When a document with no DTD declaration:

document.body.scrollTop
document.body.scrollLeft

When the document has a DTD declaration:

document.documentElement.scrollTop
document.documentElement.scrollLeft

Written ignore DTD declaration (Google, Firefox, IE9 + support):

window.pageYOffset
window.pageXOffset

Compatibility writing:

window.pageYOffset||document.body.scrollTop||document.documentElement.scrollTop