calling function remotely

when this:

function doanything()

{

ls;

}

 

invoke-command -computername $servidor -credential $credential -scriptblock { doanything }; 

 

 

i receivid error:

the term 'doanything' not recognized name of cmdlet, function, script file, or operable program. check spelling of name, or if path 

was included, verify path correct , try again.

    + categoryinfo          : objectnotfound: (doanything:string) [], commandnotfoundexception

    + fullyqualifiederrorid : commandnotfoundexception

 

 

so, how can invoke function remotely?

 

  invoke-command -computername $servidor -credential $credential -scriptblock {    function doanything   {ls}   doanything }  

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