function modifica_form()
{
	var idselect = document.frm_ricerca.idcat.options[document.frm_ricerca.idcat.selectedIndex].value;
	if ( (idselect == 1) || (idselect == 2) )
	{
		document.getElementById('alimauto_tr').style.display='block';
		document.getElementById('carrozzeria_tr').style.display='block';
		document.getElementById('porte_tr').style.display='block';
		document.getElementById('tipologia_tr').style.display='none';
		document.getElementById('tempi_tr').style.display='none';
		document.getElementById('freni1_tr').style.display='none';
		document.getElementById('freni2_tr').style.display='none';
		document.getElementById('patente_tr').style.display='none';
		document.getElementById('misure_tr').style.display='none';
		document.getElementById('peso_tr').style.display='none';
	}
	else if ( (idselect == 7) || (idselect == 9) || (idselect == 10)  || (idselect == 11) )
	{
		document.getElementById('alimauto_tr').style.display='block';
		document.getElementById('carrozzeria_tr').style.display='none';
		document.getElementById('porte_tr').style.display='none';
		document.getElementById('tipologia_tr').style.display='none';
		document.getElementById('tempi_tr').style.display='none';
		document.getElementById('freni1_tr').style.display='none';
		document.getElementById('freni2_tr').style.display='none';
		document.getElementById('patente_tr').style.display='none';
		document.getElementById('misure_tr').style.display='none';
		document.getElementById('peso_tr').style.display='none';
	}
	if (idselect == 3)
	{
		document.getElementById('alimauto_tr').style.display='none';
		document.getElementById('carrozzeria_tr').style.display='none';
		document.getElementById('porte_tr').style.display='none';
		document.getElementById('tipologia_tr').style.display='block';
		document.getElementById('tempi_tr').style.display='block';
		document.getElementById('freni1_tr').style.display='block';
		document.getElementById('freni2_tr').style.display='block';
		document.getElementById('patente_tr').style.display='block';
		document.getElementById('misure_tr').style.display='block';
		document.getElementById('peso_tr').style.display='block';
	}
	if (idselect == 4) 
	{
		document.getElementById('alimauto_tr').style.display='none';
		document.getElementById('carrozzeria_tr').style.display='none';
		document.getElementById('porte_tr').style.display='none';
		document.getElementById('tipologia_tr').style.display='none';
		document.getElementById('tempi_tr').style.display='block';
		document.getElementById('freni1_tr').style.display='block';
		document.getElementById('freni2_tr').style.display='block';
		document.getElementById('patente_tr').style.display='block';
		document.getElementById('misure_tr').style.display='block';
		document.getElementById('peso_tr').style.display='block';
	}
	if ( (idselect == 5) || (idselect == 6) ) 
	{
		document.getElementById('alimauto_tr').style.display='none';
		document.getElementById('carrozzeria_tr').style.display='none';
		document.getElementById('porte_tr').style.display='none';
		document.getElementById('tipologia_tr').style.display='none';
		document.getElementById('tempi_tr').style.display='none';
		document.getElementById('freni1_tr').style.display='none';
		document.getElementById('freni2_tr').style.display='none';
		document.getElementById('patente_tr').style.display='none';
		document.getElementById('misure_tr').style.display='block';
		document.getElementById('peso_tr').style.display='block';
	}
}

function homeform()
{
	var selconcpriv = document.frm_reghome.concpriv.options[document.frm_reghome.concpriv.selectedIndex].value;
	if (selconcpriv == 1)
	{
		document.getElementById('concform').style.display='block';
		document.getElementById('privform').style.display='none';
	}
	else if (selconcpriv == 0)
	{
		document.getElementById('concform').style.display='none';
		document.getElementById('privform').style.display='block';
	}
}

function carburante()
{
	var carb = document.frm_ricerca.idcat.options[document.frm_ricerca.idcat.selectedIndex].value;
	if ((carb == 1) || (carb == 2) || (carb == 7) )
	{
		document.getElementById('alimauto').style.display='block';
	}
	else if (carb == 8) 
	{
		window.location.href='annunci_accessori_nuovo_usato.php';
	}
	else
	{
		document.getElementById('alimauto').style.display='none';
	}
}