//设置cookie
setCookie(c_name, value, expiredays, domain) {
var exdate = new Date();
exdate.setDate(exdate.getDate() + expiredays);
document.cookie =
c_name +
"=" +
escape(value) +
(expiredays == null ? "" : ";expires=" + exdate.toGMTString()) +
";path=/;" + "domain=" + domain;
},
//取cookie
getCookie(c_name) {
var c_start;
var c_end;
if (document.cookie.length > 0) {
c_start = document.cookie.indexOf(c_name + "=");
if (c_start != -1) {
c_start = c_start + c_name.length + 1;
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 "";
},
 
delCookie(name,path,domain){
var exp = new Date();
if(this.getCookie(name)) document.cookie= name+'='+
((path)?';path='+path:'')+
((domain)?';domain='+domain:'') +
';expires='+exp.toGMTString();
},