JavaScript static page Value Pass Cookie

Use cookies.

A cookie is a browser that stores a small number of named data.

It is associated with a particular Web page or Web site.

Cookies are used to provide memory to the browser,

So that scripts and server programs can use the input data from another page in one page.

Post.htm

<input type="text" name="txt1">
<input type="button" value="Post">
<script language="javascript" >
function setCookie(name,value)
{
/*
*--------------- setCookie(name,value) -----------------
* setCookie(name,value)
* 功能:设置得变量name的值
* 参数:name,字符串;value,字符串.
* 实例:setCookie('username','baobao')
*--------------- setCookie(name,value) -----------------
*/
　　var Days = 30; //此 cookie 将被保存 30 天
　　var exp　= new Date();
　　exp.setTime(exp.getTime() + Days*24*60*60*1000);
　　document.cookie = name + "="+ escape (value) + ";expires=" + exp.toGMTString();
　　location.href = "Read.htm"; //接收页面.
}
</script>

Read.htm

<script language="javascript" >
function getCookie(name)
{
/*
*--------------- getCookie(name) -----------------
* getCookie(name)
* 功能:取得变量name的值
* 参数:name,字符串.
* 实例:alert(getCookie("baobao"));
*--------------- getCookie(name) -----------------
*/
　　var arr = document.cookie.match(new RegExp("(^| )"+name+"=([^;]*)(;|$)"));
　　if(arr !=null) return unescape(arr[2]); return null;
}
alert(getCookie("baobao"));
</script>

Advantages: can be accessed in any Web page within the same source. The lifetime can be set.

Disadvantage: The value length is limited.