$(window).scroll(function(e) {
    b();
});
function isEmpty (val) {
    return (typeof val == "undefined" || val == null || val == "")?true:false;
}

function switchClass(id,c1,c2){
    $(id).attr("class",($(id).hasClass(c1))?c2:c1);
    return false;
}
function b() {
    h = $(window).height();
    t = $(document).scrollTop();
    if (t > h) {
        $('#zd-gotop').show();
    } else {
        $('#zd-gotop').hide();
    }
}
//判断是否手机浏览器环境
var ua = navigator.userAgent;
if(ua.match(/(Mobile|Phone|Windows CE|Opera Mini|BlackBerry|SymbianOS|Palm OS|UCWEB|webOS|MIDP|Touch)/i)){
	function switchSearch(){
    $.sidr('close', 'sidr-right');
	switchClass('#zd-m-nav-search','pmore','none');
	$('body').attr("class",($('#zd-m-nav-search').hasClass('none'))?'visi':'hidd');
	document.getElementById("kw").focus();
	return false;
	}
}else{
}
$(function(){
$('#zd-nav-menu').sidr({
			name: 'sidr-right',
			side: 'right',
			source: '#zd-sidr'
	});
	$(".zd-main").click(function(){
       $.sidr('close', 'sidr-right');
    });
b();
$('#zd-gotop').click(function() {
	$('html,body').animate({
		scrollTop: '0px'
	}, 200);
});
});