Created
December 31, 2012 21:18
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Attempt to override scrollTop
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/** | |
* Overrides default JQuery.scrollTop to account for top header nav | |
* @requires JQuery | |
* @see http://api.jquery.com/scrollTop/ | |
* @see https://github.com/jquery/jquery/blob/master/src/offset.js for scrollTop declaration | |
**/ | |
(function($) { | |
var topOffset = 120; // height to account for in scrolling | |
// maintain a reference to the existing function | |
var jqueryScrollTop = $.fn.scrollTop; | |
// Overwriting the jQuery extension point | |
$.fn.scrollTop = function(pageYOffset) { | |
if((pageYOffset - topOffset) > 0) { | |
pageYOffset = pageYOffset - topOffset; | |
} | |
console.log(pageYOffset); | |
// original behavior - use function.apply to preserve context | |
return jqueryScrollTop.apply(this, [pageYOffset - 120]); | |
}; | |
})(jQuery); |
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