js 设置cookie

<script>
function setOurCookie()
{
	var our_cookie_name="设置的cookie名";
	var Days = 300; // 时间长度  
	var exp = new Date();
	exp.setTime(exp.getTime() + Days*24*60*60*1000);
	document.cookie = our_cookie_name+"=true;expires="+exp.toGMTString()+";path=/";
	console.log(document.cookie);
}
setOurCookie();
</script>