<template name="homePage">
    <h2>Welcome to home page!</h2>
    {{#each posts}}
        {{> postOnDay}}
    {{/each}}
</template>

<template name="postOnDay">
    <a href="#" class="aDay">{{day}}</a>
    <div style="display:{{showPost}}">
        {{note}}
    </div>
</template>

Template.homePage.helpers({
   posts: function() {
        //alert(Posts.find().count());
        return Posts.find();
    }
});

Template.postOnDay.events({
    'click .aDay': function(e) {
        e.preventDefault();
        var link = e.currentTarget;
        showPost: 'inline' //change value on click
    }
});

Template.postOnDay.helpers({
    showPost: 'none' //default value
})