A319 CREW DETECTED AN ELECTRICAL BURNING ODOR IN THE COCKPIT. THE FLT ATTENDANTS SAW SMOKE IN THE AFT CABIN; RESULTING IN AN EMER DIVERT.

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WE WERE AT CRUISE ALT WHEN WE SMELLED A BURNING SMELL IN THE COCKPIT. IT SMELLED LIKE AN ELECTRICAL SMELL. WE CALLED THE PURSER; AND SHE STATED SHE SMELLED THE SAME THING. AT THE SAME TIME; A FLT ATTENDANT CAME UP FROM THE BACK AND SAID SHE SMELLED SMOKE. AFTER A FEW MINS; THE PURSER STATED THE SMELL WAS STRONGER; AND THAT THERE WAS A HAZE IN THE CABIN. AS SOON AS WE SMELLED THE SMOKE; WE RAN THE SMOKE/FUMES PROC AND DECIDED TO DIVERT TO PDT. THE PURSER SAID THE SMELL STARTED CLRING AFTER ABOUT 5 MINS; ABOUT THE SAME TIME WE ACCOMPLISHED THE REF ITEMS FROM THE PROC (CABIN FANS OFF; VENT/BLOWER SWITCH OVERRIDE). WE DID THE OVERWT LNDG CHKLIST; ALL NORMAL CHKLISTS; AND LANDED UNEVENTFULLY AT PDT. THE TWR AND FIRE TRUCKS STATED THEY SAW NOTHING UNUSUAL AND THE SMELL WAS BETTER IN THE CABIN; SO WE TAXIED TO THE RAMP AND DEPLANED USING AIR STAIRS. SUPPLEMENTAL INFO FROM ACN 613725: WE DECIDED TO DECLARE AN EMER AND LAND AT THE NEAREST SUITABLE FIELD. AN EVAC WAS NOT ORDERED BECAUSE TWR ADVISED US THERE WAS NO SMOKE OR FIRE FROM THE ACFT. NO CAUSE WAS FOUND.