JS
$(document).ready(function() {
$('.btn').click(function() {
$('.mask').css({'display': 'block'});
center($('.mess'));
check($(this).parent(), $('.btn1'), $('.btn2'));
});
// 居中
function center(obj) {
var screenWidth = $(window).width(), screenHeight = $(window).height();//当前浏览器窗口的 宽高
var scrolltop = $(document).scrollTop();//获取当前窗口距离页面顶部高度
var objLeft = (screenWidth - obj.width())/2 ;
var objTop = (screenHeight - obj.height())/2 + scrolltop;
obj.css({left: objLeft + 'px', top: objTop + 'px','display': 'block'});
//浏览器窗口大小改变时
$(window).resize(function() {
screenWidth = $(window).width();
screenHeight = $(window).height();
scrolltop = $(document).scrollTop();
objLeft = (screenWidth - obj.width())/2 ;
objTop = (screenHeight - obj.height())/2 + scrolltop;
obj.css({left: objLeft + 'px', top: objTop + 'px','display': 'block'});
});
//浏览器有滚动条时的操作、
$(window).scroll(function() {
screenWidth = $(window).width();
screenHeight = $(widow).height();
scrolltop = $(document).scrollTop();
objLeft = (screenWidth - obj.width())/2 ;
objTop = (screenHeight - obj.height())/2 + scrolltop;
obj.css({left: objLeft + 'px', top: objTop + 'px','display': 'block'});
});
}
//确定取消的操作
function check(obj, obj1, obj2) {
obj1.click(function() {
obj.remove();
closed($('.mask'), $('.mess'));
});
obj2.click(function() {
closed($('.mask'), $('.mess'));
}) ;
}
// 隐藏 的操作
function closed(obj1, obj2) {
obj1.hide();
obj2.hide();
}
});