Non-abstract Method must contain body

Hello,

Im receiving a PHP error - Note I am using the code igniter frame work.

Non-abstract method Dealer_model::on_screen() must contain body in W:\www\s\system\application\models\dealer_model.php on line 84

I cant figure out what body is for this non-abstract method; please see method below.

Thank you

#--------------------------------------------------------------------------
# METHOD: On-screen display of array contents
#--------------------------------------------------------------------------
    function on_screen($var);
    {
        // on-screen display
        print ('<xmp>');
        print_r($var);
        print ('</xmp>');
        return;
    }

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