//设置cookie
function setCookie(_name,_val,_expires){
var d = new Date();
d.setDate(d.getDate()+_expires);
document.cookie = _name+‘=‘+_val+‘;path=/;expires=‘+d.toGMTString();
}
//删除cookie
function removeCookie(_name,_val){
setCookie(_name,_val,-1);
}
//获取指定cookie
function getCookie(_name){
var str = document.cookie;
var arr = str.split(‘; ‘);
var len = arr.length;
for(var i=0;i<len;i++){
var newarr = arr[i].split(‘=‘);
if(newarr[0]==_name){
return newarr[1]
}
}
}
