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/*
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 * jQuery UI Effects Pulsate 1.8.5
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 *
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 * Copyright 2010, AUTHORS.txt (http://jqueryui.com/about)
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 * Dual licensed under the MIT or GPL Version 2 licenses.
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 * http://jquery.org/license
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 *
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 * http://docs.jquery.com/UI/Effects/Pulsate
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 *
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 * Depends:
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 *	jquery.effects.core.js
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 */
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(function( $, undefined ) {
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$.effects.pulsate = function(o) {
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	return this.queue(function() {
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		var elem = $(this),
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			mode = $.effects.setMode(elem, o.options.mode || 'show');
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			times = ((o.options.times || 5) * 2) - 1;
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			duration = o.duration ? o.duration / 2 : $.fx.speeds._default / 2,
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			isVisible = elem.is(':visible'),
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			animateTo = 0;
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		if (!isVisible) {
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			elem.css('opacity', 0).show();
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			animateTo = 1;
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		}
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		if ((mode == 'hide' && isVisible) || (mode == 'show' && !isVisible)) {
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			times--;
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		}
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		for (var i = 0; i < times; i++) {
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			elem.animate({ opacity: animateTo }, duration, o.options.easing);
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			animateTo = (animateTo + 1) % 2;
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		}
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		elem.animate({ opacity: animateTo }, duration, o.options.easing, function() {
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			if (animateTo == 0) {
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				elem.hide();
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			}
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			(o.callback && o.callback.apply(this, arguments));
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		});
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		elem
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			.queue('fx', function() { elem.dequeue(); })
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			.dequeue();
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	});
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};
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})(jQuery);