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7 |
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8 | (function($) {
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9 | jQuery.extend({
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10 | isOnScreen: function(box, container) {
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11 |
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12 | for(var i in box){box[i] = parseFloat(box[i])};
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13 | for(var i in container){container[i] = parseFloat(container[i])};
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14 |
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15 | if(!container){
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16 | container = {
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17 | left: $(window).scrollLeft(),
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18 | top: $(window).scrollTop(),
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19 | width: $(window).width(),
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20 | height: $(window).height()
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21 | }
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22 | }
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23 |
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24 | if( box.left+box.width-container.left > 0 &&
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25 | box.left < container.width+container.left &&
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26 | box.top+box.height-container.top > 0 &&
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27 | box.top < container.height+container.top
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28 | ) return true;
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29 | return false;
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30 | }
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31 | })
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32 |
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33 |
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34 | jQuery.fn.isOnScreen = function (container) {
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35 | for(var i in container){container[i] = parseFloat(container[i])};
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36 |
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37 | if(!container){
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38 | container = {
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39 | left: $(window).scrollLeft(),
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40 | top: $(window).scrollTop(),
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41 | width: $(window).width(),
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42 | height: $(window).height()
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43 | }
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44 | }
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45 |
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46 | if( $(this).offset().left+$(this).width()-container.left > 0 &&
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47 | $(this).offset().left < container.width+container.left &&
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48 | $(this).offset().top+$(this).height()-container.top > 0 &&
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49 | $(this).offset().top < container.height+container.top
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50 | ) return true;
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51 | return false;
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52 | }
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53 | })(jQuery);
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