设置cookies
function setCookie(c_name,value,expiredays){
var exdate=new Date()
exdate.setTime(exdate.getTime()+expiredays*3600000*24)
document.cookie=c_name+"=" +escape(value)+
((expiredays==null) ?"" :";expires="+exdate.toGMTString())+";path=/"
}
获取cookies
function getCookie(c_name) {
if (document.cookie.length>0) {
var c_start=document.cookie.indexOf(c_name +"=")
if (c_start!==-1) {
c_start=c_start +c_name.length+1
var c_end=document.cookie.indexOf(";",c_start)
if (c_end===-1) c_end=document.cookie.length
return unescape(document.cookie.substring(c_start,c_end))
}
}
return ""
}
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