js简单实现图片切换效果
<!DOCTYPE html>
<html>
<head>
<title></title>
<script type="text/javascript" src="js/jquery-1.7.2.js"></script>
<style>
body{
margin: 0;
padding: 0;
}
.adbody{
width:100%;
height:100%;
}
.adPanel{
width:100%;
height:100%;
}
</style>
</head>
<body class="adbody">
<div class="adPanel" id="adPanel"></div>
</body>
<script>
var count = 1;
var panel = $("#adPanel");
$(function(){
var height = window.innerHeight;
panel.attr("style","height:"+height+"px");
startInterval();
});
function startInterval(){
setInterval("changeImg()", 4000);
}
function changeImg(){
var img = "img/"+count+".jpg";
panel.css("background-image", "url('"+img+"')");
panel.css("background-repeat", "no-repeat");
panel.fadeIn(500);
setTimeout("doFadeOut()", 3000);
count ++;
if(count > 6){
count = 1;
}
}
function doFadeOut(){
panel.fadeOut(500);
}
</script>
</html>