jquery.multifile.js

/*
 ### jQuery Multiple File Upload Plugin v1.48 - 2013-02-19 ###
 * Home: http://www.fyneworks.com/jquery/multiple-file-upload/
 * Code: http://code.google.com/p/jquery-multifile-plugin/
 *
	* Licensed under http://en.wikipedia.org/wiki/MIT_License
 ###
*/

/*# AVOID COLLISIONS #*/
;if(window.jQuery) (function($){
/*# AVOID COLLISIONS #*/
 
	// plugin initialization
	$.fn.MultiFile = function(options){
		if(this.length==0) return this; // quick fail
		
		// Handle API methods
		if(typeof arguments[0]=='string'){
			// Perform API methods on individual elements
			if(this.length>1){
				var args = arguments;
				return this.each(function(){
					$.fn.MultiFile.apply($(this), args);
    });
			};
			// Invoke API method handler
			$.fn.MultiFile[arguments[0]].apply(this, $.makeArray(arguments).slice(1) || []);
			// Quick exit...
			return this;
		};
		
		// Initialize options for this call
		var options = $.extend(
			{}/* new object */,
			$.fn.MultiFile.options/* default options */,
			options || {} /* just-in-time options */
		);
		
		// Empty Element Fix!!!
		// this code will automatically intercept native form submissions
		// and disable empty file elements
		$('form')
		.not('MultiFile-intercepted')
		.addClass('MultiFile-intercepted')
		.submit($.fn.MultiFile.disableEmpty);
		
		//### http://plugins.jquery.com/node/1363
		// utility method to integrate this plugin with others...
		if($.fn.MultiFile.options.autoIntercept){
			$.fn.MultiFile.intercept( $.fn.MultiFile.options.autoIntercept /* array of methods to intercept */ );
			$.fn.MultiFile.options.autoIntercept = null; /* only run this once */
		};
		
		// loop through each matched element
		this
		 .not('.MultiFile-applied')
			.addClass('MultiFile-applied')
		.each(function(){
			//#####################################################################
			// MAIN PLUGIN FUNCTIONALITY - START
			//#####################################################################
			
       // BUG 1251 FIX: http://plugins.jquery.com/project/comments/add/1251
       // variable group_count would repeat itself on multiple calls to the plugin.
       // this would cause a conflict with multiple elements
       // changes scope of variable to global so id will be unique over n calls
       window.MultiFile = (window.MultiFile || 0) + 1;
       var group_count = window.MultiFile;