series: [{
               name:  <%effort.user_id.to_s%>,
	       data: [<% @effort_array.each do |effort| %>
            <% if Effort.where(:week_commencing => effort.week_commencing, :user_id => current_user.id).sum(:hours) == 0 %>
            <% else %>
 		       [Date.UTC(<%= effort.week_commencing.strftime("%Y,%m-1,%d") %>),<%= Effort.where(:week_commencing => effort.week_commencing, :user_id => current_user.id).
	   			sum(:hours)%>],<% end %><% end %>]
	    }]
	});
});