function vis_imprese(codice){
	document.forms['lancia_imprese'].codice.value = codice;
	document.forms['lancia_imprese'].submit();
}
function vis_news(codice,tipo){
	document.forms['lancia_news'].codice.value = codice;
	document.forms['lancia_news'].tipo.value = tipo;
	document.forms['lancia_news'].submit();
}

function cambia(nuovo,dove){
    document.images[dove].src = nuovo.src
}


// funzione di centratura del pop-up

IE = navigator.appName=="Microsoft Internet Explorer";
NS = navigator.appName=="Netscape";
bVer = parseInt(navigator.appVersion); 
function centra(width,height){
  if (bVer >= 4) {
    _left = ( (screen.width-width) >>1 );
    _top  = ( (screen.height-height) >>1 );
  } else {
    _left = ( (800-width) >>1 );
    _top  = ( (600-height) >>1 );
  };
  if (IE) return (',top=' + _top + ',left=' + _left);
  else if (NS) return (',screenX=' + _left + ',screenY=' + _top);
}

function popup(location){

window.open(location,'dettagli','toolbar=no,location=no,menubar=no,scrollbars=yes,resizable=no,'+centra(550,400)+',width=550,height=400');
 }