JavaScript经典实例
1. 创建确认对话框
<html>
<head>
<meta charset="utf-8" />
<title>确认对话框创建示例</title>
<script type="text/javascript">
function isConfirm(){
if(confirm("are you sure?"))
alert("ok!");
else
alert("cancel!");
}
</script>
</head>
<body>
<form method="post" name="form1">
<input type="button" value="delete" onclick="isConfirm()" />
</form>
</body>
</html>
2. 使用Math对应的random()方法实现随机排列图片
<html>
<head>
<meta charset="utf-8" />
<title>随机排列图片</title>
<style type="text/css">
/*以下是自适应屏幕宽度*/
div{float: left; height: 160px; width: 160px; margin: 5px; padding: 0;}
div img{border: 0;}
div a{display: block;padding: 35px 12px;}
div.vbg a{display: block;padding: 10px 35px 15px;}
div.dispcenter{position: relative;margin: 0 auto; width: 700px; padding: 0 50px 0 70px;background: none;float: none;}
</style>
<script type="text/javascript" language="JavaScript">
document.write("<div class='dispcenter'>")
var picArr=new Array();
var m=0;
for(i=1;i<=20;i++){
if(i<10) i+="0";
picArr.push(i);
}
while(picArr.length>0){
i=Math.floor(Math.random()*(picArr.length-1));
if(picArr[i]=="03" || picArr[i]=="04"|| picArr[i]=="06" || picArr[i]=="11" || picArr[i]=="14" || picArr[i]=="17" || picArr[i]=="19" || picArr[i]=="20"{
document.write("<div class='vbg'><a href='photo/"+picArr[i]+".jpg'><img src+'photo/"+picArr[i]+".jpg' /></ a></div>");
}else{
document.write("<div><a href='photo/"+picArr[i]+".jpg'><img src='photo/"+picArr[i]+".jpg' /></ a></div>");
}
picArr.splice(i,1);
}
document.write("</div>")
</script>
</head>
<body>
</body>
</html>
3.使用表单对象创建注册页面
