jquery-scrolllock.js

$.fn.scrollLock=function(){return $(this).on("DOMMouseScroll mousewheel",function(h){var g=$(this),f=this.scrollTop,d=this.scrollHeight,b=g.height(),i=h.originalEvent.wheelDelta,a=i>0,c=function(){h.stopPropagation();h.preventDefault();h.returnValue=false;return false};if(!a&&-i>d-b-f){g.scrollTop(d);return c()}else{if(a&&i>f){g.scrollTop(0);return c()}}})};$.fn.scrollRelease=function(){return $(this).off("DOMMouseScroll mousewheel")};