function ShowMenu(mainM,mainT,mainO){
   document.FORM_SEARCH.mainM.value=mainM;
   document.FORM_SEARCH.mainT.value=mainT;
   document.FORM_SEARCH.mainO.value=mainO;
   document.FORM_SEARCH.mainU.value=mainU;
   document.FORM_SEARCH.mainP.value=mainP;
   document.FORM_SEARCH.backInfo.value="";
   document.FORM_SEARCH.mainModo.value="file";
   document.FORM_SEARCH.mainCat.value="";
   document.FORM_SEARCH.mainModoPreEve.value="";
   document.FORM_SEARCH.mainModoPrePar.value="";
   document.FORM_SEARCH.submit();
}

function ShowFiltro(mainM,mainT,mainO,mainCat){
   document.FORM_SEARCH.mainM.value=mainM;
   document.FORM_SEARCH.mainT.value=mainT;
   document.FORM_SEARCH.mainO.value=mainO;
   document.FORM_SEARCH.mainU.value=mainU;
   document.FORM_SEARCH.mainP.value=mainP;
   document.FORM_SEARCH.backInfo.value="";
   document.FORM_SEARCH.mainModo.value="file";
   document.FORM_SEARCH.mainCat.value=mainCat;
   document.FORM_SEARCH.mainModoPreEve.value="";
   document.FORM_SEARCH.mainModoPrePar.value="";
   document.FORM_SEARCH.submit();
}