import json

from django.core.urlresolvers import reverse

from django.http import Http404, HttpResponse

from django.shortcuts import render, get_object_or_404, redirect

from django.template import loader, Context

from django.contrib.auth.decorators import login_required

from django.contrib.sites.models import Site

from symposion.schedule.forms import SlotEditForm

from symposion.schedule.models import Schedule, Day, Slot, Presentation