var city_is_visible = (document.currentScript.getAttribute('data-is-visible') == "true");
if (city_is_visible)
{
	var lang = document.currentScript.getAttribute('data-lang');
	if (lang == "zh-cn")
		lang = "zh";
	
	const city_id = document.currentScript.getAttribute('data-city-id');
	var city_version = document.currentScript.getAttribute('data-version');
	if ((!city_version) ||
		(city_version == ""))
	{
		city_version = 1;
	}	
	const callback = document.currentScript.getAttribute('data-callback');
	const parent_element_class = document.currentScript.getAttribute('data-parent-element-class');
	const callback_exists = (callback) && (typeof window[callback] === "function");
	const parent_element_class_exists = (parent_element_class);
	
	function ResizeElement(element)
	{
		$(element).show();					
	}

	if ((callback_exists) || 
		(parent_element_class_exists))
	{
		const page_from = document.currentScript.getAttribute('data-page-from');
		$.ajax({
			type: "POST",
			url: "/city_widget.php",
			data: {"city_id": city_id, "page_from": page_from, "lang": lang, "version": city_version},
			success: function (response) 
			{				
				if ((response) &&
					(response != ""))
				{
					var server_answer = JSON.parse(response);			
					if (server_answer.status == "ok")
					{
						if (parent_element_class_exists) 
						{								
							$("." + parent_element_class).each(function () 
							{			
								$(this).html(server_answer.html);							
								ResizeElement(this);
							});
							
						}
						if (callback_exists) {
							window[callback](server_answer);
						}				
					}			
				}
			},
			error: function (thrownError) 
			{
				// do nothing
			}
		});
	}	
}