/*

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Copyright (c) 2012 Digital Fusion, http://teamdf.com/

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Permission is hereby granted, free of charge, to any person obtaining

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a copy of this software and associated documentation files (the

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"Software"), to deal in the Software without restriction, including

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without limitation the rights to use, copy, modify, merge, publish,

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distribute, sublicense, and/or sell copies of the Software, and to

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permit persons to whom the Software is furnished to do so, subject to

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the following conditions:

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The above copyright notice and this permission notice shall be

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included in all copies or substantial portions of the Software.

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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,

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EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF

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MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND

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NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE

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LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION

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OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION

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WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

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*/

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!function(t){var i=t(window);t.fn.visible=function(t,e,o){if(!(this.length<1)){var r=this.length>1?this.eq(0):this,n=r.get(0),f=i.width(),h=i.height(),o=o?o:"both",l=e===!0?n.offsetWidth*n.offsetHeight:!0;if("function"==typeof n.getBoundingClientRect){var g=n.getBoundingClientRect(),u=g.top>=0&&g.top<h,s=g.bottom>0&&g.bottom<=h,c=g.left>=0&&g.left<f,a=g.right>0&&g.right<=f,v=t?u||s:u&&s,b=t?c||a:c&&a;if("both"===o)return l&&v&&b;if("vertical"===o)return l&&v;if("horizontal"===o)return l&&b}else{var d=i.scrollTop(),p=d+h,w=i.scrollLeft(),m=w+f,y=r.offset(),z=y.top,B=z+r.height(),C=y.left,R=C+r.width(),j=t===!0?B:z,q=t===!0?z:B,H=t===!0?R:C,L=t===!0?C:R;if("both"===o)return!!l&&p>=q&&j>=d&&m>=L&&H>=w;if("vertical"===o)return!!l&&p>=q&&j>=d;if("horizontal"===o)return!!l&&m>=L&&H>=w}}}}(jQuery);

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