JavaScript 中设置或读取Cookie

JavaScript代码：

<script language="javascript" type="text/javascript">

var myStyle;

setCookie('myMenu', myStyle, '1');

function setCookie(name,value,date)

{

var Days = date;

var exp = new Date();

exp.setTime(exp.getTime() + Days*24*60*60*1000);

document.cookie = name + "="+ escape (value) ;//+ ";expires=" + exp.toGMTString()

}

function getCookie(name)

{

var arr = document.cookie.match(new RegExp("(^| )"+name+"=([^;]*)(;|$)"));

if(arr != null) return unescape(arr[2]); return null;

}

function delCookie(name)

{

var exp = new Date();

exp.setTime(exp.getTime() - 1);

var cval=getCookie(name);

if(cval!=null) document.cookie= name + "="+cval+";expires="+exp.toGMTString();

}

</script>