no starter operation?

i shut it off to go into my sisters birthday party, came out a few hours later and nothing works when i turn key except lights in and out of van. radio and heater blower. i can hear fuel pump but nothing else . engine makes no noise when you turn the key. the only light that comes on in the dash is a little man maybe an air bag light . thats it . then when you take key out shut doors they all stay on i had to dis connect battery to shut all accesories off. and head and tail lights stay on too. but checked all the fuses with test light and found nothing . please help.