js设置cookie

var user=' user'
function setCookie(name,value,day){
		var oDate=new Date()
		oDate.setDate(oDate.getDate()+day)
		document.cookie=name+"="+value+";expires="+oDate
	}
function getCookie(name){
		var allCookie=document.cookie
		var arr=allCookie.split(';')
		for(var i=0;i<arr.length;i++){
			var arr1=arr[i].split('=')
			if(arr1[0]==name){
				alert()
				return arr1[1]
			}
		}
	}
	function removeCookie(name){
      setCookie(name,1,-1)
	}
	setCookie(user,'sa',1)
	console.log(getCookie(user));