olympiamanagement/app/assets/javascripts/admin/olympiamanagement.js

$(document).ready(function(){
	$('.class_setting_block input[type="reset"]').off('click').on('click',function(){
		$('.col_input').val('');
	});
	$('.class_setting_block input[type="submit"]').off('click').on('click',function(){
		var class_number_range = [];
		class_number_range.push(Number($('.class_setting_block .col_input[name="MinClass"]').val()));
		class_number_range.push(Number($('.class_setting_block .col_input[name="MaxClass"]').val()));
		var enrollment_available = $('.class_setting_block .col_input#Person').val();
		class_number_range.sort();
		var params_array = (window.location.search.substring(1)=="") ? [] : window.location.search.substring(1).split('&').map(function(el){return el.split('=')});
		var params = {};
		params_array.forEach(function(el){params[el[0]] = el[1]});
		var params_to_send = {'type':'class_setting','class_number_range':class_number_range,'enrollment_available':enrollment_available};
		params_to_send = Object.assign(params,params_to_send);
		var post_data = $.post('/admin/olympiamanagements/update_school_data',params_to_send);
		post_data.done(function(){
			window.location.search="";
		});
	});
	var $el = $('.fieldset_block select');
	for(var i = 0 ; i < $el.length ; i++)
		$el.eq(i).find('option[value='+$el.eq(i).attr('value')+']').attr('selected','selected');
});