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+/*
+ * jQuery UI Effects Drop 1.8.9
+ *
+ * Copyright 2011, AUTHORS.txt (http://jqueryui.com/about)
+ * Dual licensed under the MIT or GPL Version 2 licenses.
+ * http://jquery.org/license
+ *
+ * http://docs.jquery.com/UI/Effects/Drop
+ *
+ * Depends:
+ * jquery.effects.core.js
+ */
+(function( $, undefined ) {
+
+$.effects.drop = function(o) {
+
+ return this.queue(function() {
+
+ // Create element
+ var el = $(this), props = ['position','top','bottom','left','right','opacity'];
+
+ // Set options
+ var mode = $.effects.setMode(el, o.options.mode || 'hide'); // Set Mode
+ var direction = o.options.direction || 'left'; // Default Direction
+
+ // Adjust
+ $.effects.save(el, props); el.show(); // Save & Show
+ $.effects.createWrapper(el); // Create Wrapper
+ var ref = (direction == 'up' || direction == 'down') ? 'top' : 'left';
+ var motion = (direction == 'up' || direction == 'left') ? 'pos' : 'neg';
+ var distance = o.options.distance || (ref == 'top' ? el.outerHeight({margin:true}) / 2 : el.outerWidth({margin:true}) / 2);
+ if (mode == 'show') el.css('opacity', 0).css(ref, motion == 'pos' ? -distance : distance); // Shift
+
+ // Animation
+ var animation = {opacity: mode == 'show' ? 1 : 0};
+ animation[ref] = (mode == 'show' ? (motion == 'pos' ? '+=' : '-=') : (motion == 'pos' ? '-=' : '+=')) + distance;
+
+ // Animate
+ el.animate(animation, { queue: false, duration: o.duration, easing: o.options.easing, complete: function() {
+ if(mode == 'hide') el.hide(); // Hide
+ $.effects.restore(el, props); $.effects.removeWrapper(el); // Restore
+ if(o.callback) o.callback.apply(this, arguments); // Callback
+ el.dequeue();
+ }});
+
+ });
+
+};
+
+})(jQuery);