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r=/^(textarea|select|embed|object)$/i,a=/^(button|submit|radio|checkbox|file|color|image)$/i;if(e.defaultPrevented||r.test(t.nodeName)||h(t,"input")&&!a.test(t.type)||h(D,"video")||g(e)||t.isContentEditable||o)return!0;if((h(t,"button")||h(t,"input")&&a.test(t.type))&&e.keyCode===K.spacebar)return!0;if(h(t,"input")&&"radio"==t.type&&R[e.keyCode])return!0;var i,c=0,d=0,s=u(D),f=s.clientHeight;switch(s==document.body&&(f=window.innerHeight),e.keyCode){case K.up:d=-z.arrowScroll;break;case K.down:d=z.arrowScroll;break;case K.spacebar:i=e.shiftKey?1:-1,d=-i*f*.9;break;case K.pageup:d=.9*-f;break;case K.pagedown:d=.9*f;break;case K.home:d=-s.scrollTop;break;case K.end:var m=s.scrollHeight-s.scrollTop-f;d=m>0?m+10:0;break;case K.left:c=-z.arrowScroll;break;case K.right:c=z.arrowScroll;break;default:return!0}n(s,c,d),e.preventDefault(),l()}function i(e){D=e.target}function l(){clearTimeout(E),E=setInterval(function(){I={}},1e3)}function c(e,t){for(var o=e.length;o--;)I[F(e[o])]=t;return 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