jquery on and off events

jquery on and off events

hi i am using jquery 1.7.2

in my code i have 

$(document).off("click",".classname", func).on( "click",".classname",func);

$(document).off("click",".classname1", func1).on( "click",".classname1",func1);

For the first time onclick of ".classname" & ".classname1" triggers once,

but fromt he next time it triggers twice and I have other class elements too having click events and it fires multiple times as I click on new events.

Can somebosy please suggest a solution to avoid multiple firing on the click event.

Thanks In Advance.