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- /* Copyright (c) 2010
- * @author Laurence Wheway
- * Dual licensed under the MIT (http://www.opensource.org/licenses/mit-license.php)
- * and GPL (http://www.opensource.org/licenses/gpl-license.php) licenses.
- *
- * @version 1.2.0
- */
- (function($) {
- jQuery.extend({
- isOnScreen: function(box, container) {
- //ensure numbers come in as intgers (not strings) and remove 'px' is it's there
- for(var i in box){box[i] = parseFloat(box[i])};
- for(var i in container){container[i] = parseFloat(container[i])};
- if(!container){
- container = {
- left: $(window).scrollLeft(),
- top: $(window).scrollTop(),
- width: $(window).width(),
- height: $(window).height()
- }
- }
- if( box.left+box.width-container.left > 0 &&
- box.left < container.width+container.left &&
- box.top+box.height-container.top > 0 &&
- box.top < container.height+container.top
- ) return true;
- return false;
- }
- })
- jQuery.fn.isOnScreen = function (container) {
- for(var i in container){container[i] = parseFloat(container[i])};
- if(!container){
- container = {
- left: $(window).scrollLeft(),
- top: $(window).scrollTop(),
- width: $(window).width(),
- height: $(window).height()
- }
- }
- if( $(this).offset().left+$(this).width()-container.left > 0 &&
- $(this).offset().left < container.width+container.left &&
- $(this).offset().top+$(this).height()-container.top > 0 &&
- $(this).offset().top < container.height+container.top
- ) return true;
- return false;
- }
- })(jQuery);
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