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209 lines
8.5 KiB
JavaScript
209 lines
8.5 KiB
JavaScript
/*
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### jQuery Star Rating Plugin v2.61 - 2009-01-23 ###
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* Home: http://www.fyneworks.com/jquery/star-rating/
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* Code: http://code.google.com/p/jquery-star-rating-plugin/
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*
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* Dual licensed under the MIT and GPL licenses:
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* http://www.opensource.org/licenses/mit-license.php
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* http://www.gnu.org/licenses/gpl.html
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###
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*//*
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Based on http://www.phpletter.com/Demo/Jquery-Star-Rating-Plugin/
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Original comments:
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This is hacked version of star rating created by <a href="http://php.scripts.psu.edu/rja171/widgets/rating.php">Ritesh Agrawal</a>
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It transforms a set of radio type input elements to star rating type and remain the radio element name and value,
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so could be integrated with your form. It acts as a normal radio button.
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modified by : Logan Cai (cailongqun[at]yahoo.com.cn)
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Last modified by Qiang Xue on Feb. 26, 2009
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added support to allow input names like post[rating] (previously this won't work).
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*/
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/*# AVOID COLLISIONS #*/
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;if(window.jQuery) (function($){
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/*# AVOID COLLISIONS #*/
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// IE6 Background Image Fix
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if ($.browser.msie) try { document.execCommand("BackgroundImageCache", false, true)} catch(e) { }
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// Thanks to http://www.visualjquery.com/rating/rating_redux.html
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// default settings
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$.rating = {
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cancel: 'Cancel Rating', // advisory title for the 'cancel' link
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cancelValue: '', // value to submit when user click the 'cancel' link
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split: 0, // split the star into how many parts?
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// Width of star image in case the plugin can't work it out. This can happen if
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// the jQuery.dimensions plugin is not available OR the image is hidden at installation
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starWidth: 16,
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//NB.: These don't need to be defined (can be undefined/null) so let's save some code!
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//half: false, // just a shortcut to settings.split = 2
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//required: false, // disables the 'cancel' button so user can only select one of the specified values
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//readOnly: false, // disable rating plugin interaction/ values cannot be changed
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//focus: function(){}, // executed when stars are focused
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//blur: function(){}, // executed when stars are focused
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//callback: function(){}, // executed when a star is clicked
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// required properties:
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groups: {},// allows multiple star ratings on one page
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event: {// plugin event handlers
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fill: function(n, el, settings, state){ // fill to the current mouse position.
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//if(window.console) console.log(['fill', $(el), $(el).prevAll('.star_group_'+n.replace(/\[|\]/g, "_")), arguments]);
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this.drain(n);
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$(el).prevAll('.star_group_'+n.replace(/\[|\]/g, "_")).andSelf().addClass('star_'+(state || 'hover'));
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// focus handler, as requested by focusdigital.co.uk
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var lnk = $(el).children('a'); val = lnk.text();
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if(settings.focus) settings.focus.apply($.rating.groups[n].valueElem[0], [val, lnk[0]]);
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},
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drain: function(n, el, settings) { // drain all the stars.
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//if(window.console) console.log(['drain', $(el), $(el).prevAll('.star_group_'+n.replace(/\[|\]/g, "_")), arguments]);
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$.rating.groups[n].valueElem.siblings('.star_group_'+n.replace(/\[|\]/g, "_")).removeClass('star_on').removeClass('star_hover');
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},
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reset: function(n, el, settings){ // Reset the stars to the default index.
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if(!$($.rating.groups[n].current).is('.cancel'))
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$($.rating.groups[n].current).prevAll('.star_group_'+n.replace(/\[|\]/g, "_")).andSelf().addClass('star_on');
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// blur handler, as requested by focusdigital.co.uk
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var lnk = $(el).children('a'); val = lnk.text();
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if(settings.blur) settings.blur.apply($.rating.groups[n].valueElem[0], [val, lnk[0]]);
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},
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click: function(n, el, settings){ // Selected a star or cancelled
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$.rating.groups[n].current = el;
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var lnk = $(el).children('a'); val = lnk.text();
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// Set value
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$.rating.groups[n].valueElem.val(val);
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// Update display
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$.rating.event.drain(n, el, settings);
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$.rating.event.reset(n, el, settings);
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// click callback, as requested here: http://plugins.jquery.com/node/1655
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if(settings.callback) settings.callback.apply($.rating.groups[n].valueElem[0], [val, lnk[0]]);
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}
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}// plugin events
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};
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$.fn.rating = function(instanceSettings){
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if(this.length==0) return this; // quick fail
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instanceSettings = $.extend(
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{}/* new object */,
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$.rating/* global settings */,
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instanceSettings || {} /* just-in-time settings */
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);
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// loop through each matched element
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this.each(function(i){
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var settings = $.extend(
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{}/* new object */,
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instanceSettings || {} /* current call settings */,
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($.metadata? $(this).metadata(): ($.meta?$(this).data():null)) || {} /* metadata settings */
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);
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////if(window.console) console.log([this.name, settings.half, settings.split], '#');
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// Generate internal control ID
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var n = (this.name || 'unnamed-rating');
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// Grouping
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if(!$.rating.groups[n]) $.rating.groups[n] = {count: 0};
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i = $.rating.groups[n].count; $.rating.groups[n].count++;
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// Accept readOnly setting from 'disabled' property
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$.rating.groups[n].readOnly = $.rating.groups[n].readOnly || settings.readOnly || $(this).attr('disabled');
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// Things to do with the first element...
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if(i == 0){
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// Create value element (disabled if readOnly)
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$.rating.groups[n].valueElem = $('<input type="hidden" name="' + n + '" value=""' + (settings.readOnly ? ' disabled="disabled"' : '') + '/>');
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// Insert value element into form
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$(this).before($.rating.groups[n].valueElem);
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if($.rating.groups[n].readOnly || settings.required){
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// DO NOT display 'cancel' button
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}
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else{
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// Display 'cancel' button
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$(this).before(
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$('<div class="cancel"><a title="' + settings.cancel + '">' + settings.cancelValue + '</a></div>')
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.mouseover(function(){ $.rating.event.drain(n, this, settings); $(this).addClass('star_on'); })
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.mouseout(function(){ $.rating.event.reset(n, this, settings); $(this).removeClass('star_on'); })
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.click(function(){ $.rating.event.click(n, this, settings); })
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);
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}
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}; // if (i == 0) (first element)
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// insert rating option right after preview element
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eStar = $('<div class="star"><a title="' + (this.title || this.value) + '">' + this.value + '</a></div>');
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$(this).after(eStar);
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// Half-stars?
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if(settings.half) settings.split = 2;
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// Prepare division settings
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if(typeof settings.split=='number' && settings.split>0){
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var stw = ($.fn.width ? $(eStar).width() : 0) || settings.starWidth;
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var spi = (i % settings.split), spw = Math.floor(stw/settings.split);
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$(eStar)
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// restrict star's width and hide overflow (already in CSS)
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.width(spw)
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// move the star left by using a negative margin
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// this is work-around to IE's stupid box model (position:relative doesn't work)
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.find('a').css({ 'margin-left':'-'+ (spi*spw) +'px' })
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};
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// Remember group name so controls within the same container don't get mixed up
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$(eStar).addClass('star_group_'+n.replace(/\[|\]/g, "_"));
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// readOnly?
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if($.rating.groups[n].readOnly)//{ //save a byte!
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// Mark star as readOnly so user can customize display
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$(eStar).addClass('star_readonly');
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//} //save a byte!
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else//{ //save a byte!
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$(eStar)
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// Enable hover css effects
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.addClass('star_live')
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// Attach mouse events
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.mouseover(function(){ $.rating.event.drain(n, this, settings); $.rating.event.fill(n, this, settings, 'hover'); })
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.mouseout(function(){ $.rating.event.drain(n, this, settings); $.rating.event.reset(n, this, settings); })
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.click(function(){ $.rating.event.click(n, this, settings); });
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//}; //save a byte!
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////if(window.console) console.log(['###', n, this.checked, $.rating.groups[n].initial]);
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if(this.checked) $.rating.groups[n].current = eStar;
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//remove this checkbox
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$(this).remove();
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// reset display if last element
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if(i + 1 == this.length) $.rating.event.reset(n, this, settings);
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}); // each element
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// initialize groups...
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for(n in $.rating.groups)//{ not needed, save a byte!
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(function(c, v, n){ if(!c) return;
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$.rating.event.fill(n, c, instanceSettings || {}, 'on');
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$(v).val($(c).children('a').text());
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})
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($.rating.groups[n].current, $.rating.groups[n].valueElem, n);
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//}; not needed, save a byte!
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return this; // don't break the chain...
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};
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/*
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### Default implementation ###
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The plugin will attach itself to file inputs
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with the class 'multi' when the page loads
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*/
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$(function(){ $('input[type=radio].star').rating(); });
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/*# AVOID COLLISIONS #*/
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})(jQuery);
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/*# AVOID COLLISIONS #*/
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