Grazie a tutti ho risolto cosi:
codice:
<SCRIPT LANGUAGE="JavaScript"> 
function cabmifun1() { 
if(document.form1.sdaass.checked){ 
ass('sda') ;

}else{ 
function ass1('sda');

} 
   } 
</SCRIPT>
<SCRIPT LANGUAGE="JavaScript"> 
function cabmifun() { 
if(document.form1.posteass.checked){ 
ass('poste');
}else{ 
ass1('poste');
} 
   } 
</SCRIPT>
:metallica