Ajax php triple dropdown is empty.. not sure what error!!!!

[freakymitra]

Hi All,

 

I am stuck at one place for chained Drop Down list from Mysql database. When i select first drop down it should change second drop down value (but its blank in my case) and third value depend on second drop down value selection. (Third is also blank)

 

I feel some thing is miss out in the code. i herewith attached my files. Can you please go through it and please prompt me the error..

 

As always thanks for your support guys..

 

...Ravi 

 

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