var t_pic =0;
var l_pic =0;
var xishu = 1;
var yon = 0;
var xon = 0;
var delay = 10;
var int;
var pause = false;
var pic_w = $('.piaofu').width();
var pic_h = $('.piaofu').height();
$('.piaofu').width(pic_w).height(pic_h);
//位移
function float(){
var kuang_w = $(window).width();
var kuang_h = $(window).height();
if (yon)
{t_pic = t_pic + xishu;}
else
{t_pic = t_pic - xishu;}
if (t_pic < 0)
{yon = 1;}
if (t_pic >= (kuang_h-pic_h))
{yon = 0;}
if (xon)
{l_pic = l_pic + xishu;}
else
{l_pic = l_pic - xishu;}
if (l_pic < 0)
{xon = 1;}
if (l_pic >= (kuang_w-pic_w))
{xon = 0;}
$('.piaofu').css('left',l_pic);
$('.piaofu').css('top',t_pic);
}
//循环执行
function start()
{
int = self.setInterval("float()",delay);
}
start();
//鼠标经过暂停
function pause_resume(pause)
{
if(pause)
{
clearInterval(int);
}
else
{
int = self.setInterval("float()",delay);
}
}
$('.piaofu').hover(function(){
pause = true;
pause_resume(pause) ;
},function(){
pause = false;
pause_resume(pause) ;
})
//关闭漂浮
$('.close').click(function(){
$('.piaofu').hide();
})