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/* http://keith-wood.name/realPerson.html
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Real Person Form Submission for jQuery v1.1.1.
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Written by Keith Wood (kwood{at}iinet.com.au) June 2009.
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Available under the MIT (https://github.com/jquery/jquery/blob/master/MIT-LICENSE.txt) license.
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Please attribute the author if you use it. */
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(function($) { // Hide scope, no $ conflict
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/* Real person manager. */
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function RealPerson() {
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this._defaults = {
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length: 6, // Number of characters to use
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includeNumbers: false, // True to use numbers as well as letters
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regenerate: 'Click to change', // Instruction text to regenerate
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hashName: '{n}Hash' // Name of the hash value field to compare with,
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// use {n} to substitute with the original field name
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};
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}
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var CHARS = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789';
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var DOTS = [
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[' * ', ' * * ', ' * * ', ' * * ', ' ***** ', '* *', '* *'],
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['****** ', '* *', '* *', '****** ', '* *', '* *', '****** '],
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[' ***** ', '* *', '* ', '* ', '* ', '* *', ' ***** '],
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['****** ', '* *', '* *', '* *', '* *', '* *', '****** '],
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['*******', '* ', '* ', '**** ', '* ', '* ', '*******'],
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['*******', '* ', '* ', '**** ', '* ', '* ', '* '],
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[' ***** ', '* *', '* ', '* ', '* ***', '* *', ' ***** '],
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['* *', '* *', '* *', '*******', '* *', '* *', '* *'],
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['*******', ' * ', ' * ', ' * ', ' * ', ' * ', '*******'],
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[' *', ' *', ' *', ' *', ' *', '* *', ' ***** '],
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['* *', '* ** ', '* ** ', '** ', '* ** ', '* ** ', '* *'],
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['* ', '* ', '* ', '* ', '* ', '* ', '*******'],
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['* *', '** **', '* * * *', '* * *', '* *', '* *', '* *'],
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['* *', '** *', '* * *', '* * *', '* * *', '* **', '* *'],
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[' ***** ', '* *', '* *', '* *', '* *', '* *', ' ***** '],
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['****** ', '* *', '* *', '****** ', '* ', '* ', '* '],
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[' ***** ', '* *', '* *', '* *', '* * *', '* * ', ' **** *'],
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['****** ', '* *', '* *', '****** ', '* * ', '* * ', '* *'],
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[' ***** ', '* *', '* ', ' ***** ', ' *', '* *', ' ***** '],
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['*******', ' * ', ' * ', ' * ', ' * ', ' * ', ' * '],
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['* *', '* *', '* *', '* *', '* *', '* *', ' ***** '],
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['* *', '* *', ' * * ', ' * * ', ' * * ', ' * * ', ' * '],
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['* *', '* *', '* *', '* * *', '* * * *', '** **', '* *'],
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['* *', ' * * ', ' * * ', ' * ', ' * * ', ' * * ', '* *'],
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['* *', ' * * ', ' * * ', ' * ', ' * ', ' * ', ' * '],
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['*******', ' * ', ' * ', ' * ', ' * ', ' * ', '*******'],
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[' *** ', ' * * ', '* * *', '* * *', '* * *', ' * * ', ' *** '],
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[' * ', ' ** ', ' * * ', ' * ', ' * ', ' * ', '*******'],
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[' ***** ', '* *', ' *', ' * ', ' ** ', ' ** ', '*******'],
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[' ***** ', '* *', ' *', ' ** ', ' *', '* *', ' ***** '],
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[' * ', ' ** ', ' * * ', ' * * ', '*******', ' * ', ' * '],
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['*******', '* ', '****** ', ' *', ' *', '* *', ' ***** '],
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[' **** ', ' * ', '* ', '****** ', '* *', '* *', ' ***** '],
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['*******', ' * ', ' * ', ' * ', ' * ', ' * ', '* '],
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[' ***** ', '* *', '* *', ' ***** ', '* *', '* *', ' ***** '],
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[' ***** ', '* *', '* *', ' ******', ' *', ' * ', ' **** ']];
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$.extend(RealPerson.prototype, {
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/* Class name added to elements to indicate already configured with real person. */
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markerClassName: 'hasRealPerson',
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/* Name of the data property for instance settings. */
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propertyName: 'realperson',
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/* Override the default settings for all real person instances.
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@param options (object) the new settings to use as defaults
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@return (RealPerson) this object */
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setDefaults: function(options) {
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$.extend(this._defaults, options || {});
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return this;
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},
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/* Attach the real person functionality to an input field.
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@param target (element) the control to affect
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@param options (object) the custom options for this instance */
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_attachPlugin: function(target, options) {
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target = $(target);
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if (target.hasClass(this.markerClassName)) {
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return;
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}
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var inst = {options: $.extend({}, this._defaults)};
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target.addClass(this.markerClassName).data(this.propertyName, inst);
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this._optionPlugin(target, options);
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},
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/* Retrieve or reconfigure the settings for a control.
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@param target (element) the control to affect
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@param options (object) the new options for this instance or
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(string) an individual property name
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@param value (any) the individual property value (omit if options
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is an object or to retrieve the value of a setting)
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@return (any) if retrieving a value */
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_optionPlugin: function(target, options, value) {
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target = $(target);
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var inst = target.data(this.propertyName);
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if (!options || (typeof options == 'string' && value == null)) { // Get option
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var name = options;
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options = (inst || {}).options;
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return (options && name ? options[name] : options);
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}
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if (!target.hasClass(this.markerClassName)) {
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return;
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}
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options = options || {};
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if (typeof options == 'string') {
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var name = options;
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options = {};
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options[name] = value;
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}
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$.extend(inst.options, options);
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target.prevAll('.' + this.propertyName + '-challenge,.' + this.propertyName + '-hash').
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remove().end().before(this._generateHTML(target, inst));
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},
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/* Generate the additional content for this control.
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@param target (jQuery) the input field
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@param inst (object) the current instance settings
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@return (string) the additional content */
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_generateHTML: function(target, inst) {
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var text = '';
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for (var i = 0; i < inst.options.length; i++) {
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text += CHARS.charAt(Math.floor(Math.random() *
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(inst.options.includeNumbers ? 36 : 26)));
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}
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var html = '<div class="' + this.propertyName + '-challenge">' +
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'<div class="' + this.propertyName + '-text">';
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for (var i = 0; i < DOTS[0].length; i++) {
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for (var j = 0; j < text.length; j++) {
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html += DOTS[CHARS.indexOf(text.charAt(j))][i].replace(/ /g, ' ') +
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' ';
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}
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html += '<br>';
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}
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html += '</div><div class="' + this.propertyName + '-regen">' + inst.options.regenerate +
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'</div></div><input type="hidden" class="' + this.propertyName + '-hash" name="' +
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inst.options.hashName.replace(/\{n\}/, target.attr('name')) +
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'" value="' + this._hash(text) + '">';
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return html;
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},
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/* Enable the plugin functionality for a control.
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@param target (element) the control to affect */
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_enablePlugin: function(target) {
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target = $(target);
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if (!target.hasClass(this.markerClassName)) {
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return;
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}
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target.removeClass(this.propertyName + '-disabled').prop('disabled', false).
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prevAll('.' + this.propertyName + '-challenge').removeClass(this.propertyName + '-disabled');
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},
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/* Disable the plugin functionality for a control.
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@param target (element) the control to affect */
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_disablePlugin: function(target) {
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target = $(target);
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if (!target.hasClass(this.markerClassName)) {
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return;
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}
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target.addClass(this.propertyName + '-disabled').prop('disabled', true).
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prevAll('.' + this.propertyName + '-challenge').addClass(this.propertyName + '-disabled');
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},
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/* Remove the plugin functionality from a control.
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@param target (element) the control to affect */
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_destroyPlugin: function(target) {
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target = $(target);
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if (!target.hasClass(this.markerClassName)) {
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return;
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}
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target.removeClass(this.markerClassName).
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removeData(this.propertyName).
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prevAll('.' + this.propertyName + '-challenge,.' + this.propertyName + '-hash').remove();
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},
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/* Compute a hash value for the given text.
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@param value (string) the text to hash
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@return the corresponding hash value */
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_hash: function(value) {
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var hash = 5381;
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for (var i = 0; i < value.length; i++) {
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hash = ((hash << 5) + hash) + value.charCodeAt(i);
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}
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return hash;
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}
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});
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// The list of commands that return values and don't permit chaining
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var getters = [''];
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/* Determine whether a command is a getter and doesn't permit chaining.
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@param command (string, optional) the command to run
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@param otherArgs ([], optional) any other arguments for the command
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@return true if the command is a getter, false if not */
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function isNotChained(command, otherArgs) {
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if (command == 'option' && (otherArgs.length == 0 ||
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(otherArgs.length == 1 && typeof otherArgs[0] == 'string'))) {
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return true;
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}
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return $.inArray(command, getters) > -1;
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}
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/* Attach the real person functionality to a jQuery selection.
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@param options (object) the new settings to use for these instances (optional) or
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(string) the command to run (optional)
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@return (jQuery) for chaining further calls or
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(any) getter value */
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$.fn.realperson = function(options) {
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var otherArgs = Array.prototype.slice.call(arguments, 1);
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if (isNotChained(options, otherArgs)) {
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return plugin['_' + options + 'Plugin'].apply(plugin, [this[0]].concat(otherArgs));
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}
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return this.each(function() {
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if (typeof options == 'string') {
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if (!plugin['_' + options + 'Plugin']) {
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throw 'Unknown command: ' + options;
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}
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plugin['_' + options + 'Plugin'].apply(plugin, [this].concat(otherArgs));
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}
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else {
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plugin._attachPlugin(this, options || {});
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}
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});
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};
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/* Initialise the real person functionality. */
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var plugin = $.realperson = new RealPerson(); // Singleton instance
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$(document).on('click', 'div.' + plugin.propertyName + '-challenge', function() {
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if (!$(this).hasClass(plugin.propertyName + '-disabled')) {
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$(this).nextAll('.' + plugin.markerClassName).realperson('option', {});
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}
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});
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})(jQuery);
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Paramjit Singh Sahota