Computer won't sleep when lid shut and battery icon not showing and not charging

hello, I've just come back from holiday and went to turn on my mac air that was sitting at home, and it was flat so i put it on the charge and today i see that the light was still orange and then i notice that there is no battery icon and when I'm at the password stage to log into my account there is a black cross over the battery icon and then once logged on it disappears. And also when the lid is shut, nothing happens the light stays on the apple logo and the laptop doesn't sleep. also the lights for the key board aren't turning on, please help

     Reset SMC.     http://support.apple.com/kb/HT3964
   Choose the method for:
   "Resetting SMC on portables with a battery you should not remove on your own".

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    Try Reset SMC.  http://support.apple.com/kb/HT3964
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    1/31/13 9:44:10 PM PST  
    Assertion status system-wide:
       PreventUserIdleDisplaySleep             0
       CPUBoundAssertion                       0
       DisableInflow                           0
       ChargeInhibit                           0
       PreventSystemSleep                      0
       PreventUserIdleSystemSleep              0
       ExternalMedia                           0
       DisableLowPowerBatteryWarnings          0
       EnableIdleSleep                         1
       NoRealPowerSources_debug                0
       UserIsActive                            0
       ApplePushServiceTask                    0
    Kernel Assertions: None

  • MBP won't sleep when I shut the cover.

    New behavior. ?

    Since I have never used your computer, I have no idea if the condition is "new behavior."
    Apple Portables: Resetting the System Management Controller (SMC)

  • Computer does not sleep when lid is closed

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  • Computer not going to sleep when lid closed

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    Ron,
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  • Won't sleep when I close the lid - HELP!

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