function rem(id) {
	$("#"+id).prop('checked', false);
	$("#dd_"+id).remove();
	hideNotUsed();
}

$(function() {
	hideNotUsed();
	if (findBootstrapEnvironment() != "xs") {
		var element = $('.follow-scroll'),
			originalY = element.offset().top;

		// Space between element and top of screen (when scrolling)
		var topMargin = 20;

		// Should probably be set in CSS; but here just for emphasis
		element.css('position', 'relative');

		$(window).on('scroll', function (event) {
			var scrollTop = $(window).scrollTop();

			element.stop(false, false).animate({
				top: scrollTop < originalY
					? 0
					: scrollTop - originalY + topMargin
			}, 300);
		});
	}

	$(":checkbox").change(function(){
		var id = this.id;
		var type = id.substring(0, id.lastIndexOf('_'));
		var item_id = id.substring(id.lastIndexOf('_') + 1 );
		if(this.checked)
			$("#"+type+"-search").append("<dd onclick=\"rem('" + id + "');\" id='dd_" + id + "'><a href=\"javascript:void(0)\"><i class=\"fa fa-times\"></i>"+ $("#lb_" + id).text() +"</a></dd>");
		else
			$("#dd_" + id).remove();
		hideNotUsed();
	});

	$("#clear-case_width").click(function(){
		$("#case_width_from").val("");
		$("#case_width_to").val("");
	});

	$("#clear-price").click(function(){
		$("#price_from").val("");
		$("#price_to").val("");
		$("$special")
	});

	$(":checked").trigger("change");
});

function hideNotUsed()
{
	$("dl[id$='-search']").each( function() {
		$(this).hide();
	});
	$("input:checked").each(function () {
		$("#" + this.id.substring(0, this.id.lastIndexOf('_')) + "-search").show();
	});
}

function clearChks(panel) {
	$("#" + panel).find(':checkbox').each(function(){
		$(this).attr('checked', false).trigger( "change" );
	});
}

function findBootstrapEnvironment() {
	var envs = ['xs', 'sm', 'md', 'lg'];

	$el = $('<div>');
	$el.appendTo($('body'));

	for (var i = envs.length - 1; i >= 0; i--) {
		var env = envs[i];

		$el.addClass('hidden-' + env);
		if ($el.is(':hidden')) {
			$el.remove();
			return env
		}
	}
}