Created
May 7, 2012 10:49
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Window Scroll position
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// Window scroll position in Javascript | |
// Extract from http://www.softcomplex.com/docs/get_window_size_and_scrollbar_position.html | |
function f_clientWidth() { | |
return f_filterResults ( | |
window.innerWidth ? window.innerWidth : 0, | |
document.documentElement ? document.documentElement.clientWidth : 0, | |
document.body ? document.body.clientWidth : 0 | |
); | |
} | |
function f_clientHeight() { | |
return f_filterResults ( | |
window.innerHeight ? window.innerHeight : 0, | |
document.documentElement ? document.documentElement.clientHeight : 0, | |
document.body ? document.body.clientHeight : 0 | |
); | |
} | |
function f_scrollLeft() { | |
return f_filterResults ( | |
window.pageXOffset ? window.pageXOffset : 0, | |
document.documentElement ? document.documentElement.scrollLeft : 0, | |
document.body ? document.body.scrollLeft : 0 | |
); | |
} | |
function f_scrollTop() { | |
return f_filterResults ( | |
window.pageYOffset ? window.pageYOffset : 0, | |
document.documentElement ? document.documentElement.scrollTop : 0, | |
document.body ? document.body.scrollTop : 0 | |
); | |
} | |
function f_filterResults(n_win, n_docel, n_body) { | |
var n_result = n_win ? n_win : 0; | |
if (n_docel && (!n_result || (n_result > n_docel))) | |
n_result = n_docel; | |
return n_body && (!n_result || (n_result > n_body)) ? n_body : n_result; | |
} |
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