function controlla_mail(string){      // per controllare l'esattezza formale dell'indirizzo mail
var check = /^[_a-z0-9-]+(\.[_a-z0-9-]+)*@[a-z0-9-]+(\.[a-z0-9-]+)*(\.[a-z]{2,6})$/i;
var valore = string.value;
if(valore != ''){
var result = check.test(valore);
if(!result){
alert('Attenzione, il formato dell\'e-mail non e\' corretto.');
string.style.backgroundColor = '#ec4343';
string.value='';
string.focus();
return false;
}}
return true ;
}

function showWindowLang(id,idCat,lang){
var w = screen.availWidth ;
var h = screen.availHeight - 100 ;
var ww = 780 ; if(w < 780) ww = w ;
var l = Math.round((w - 780) / 2);
var opt = 'toolbar=no,scrollbar=auto,resizable=no,status=no,scrollbars=yes,top=40,width='+ww+',height=' + h + ',left='+l ;
var link = '/sardegne/0/view/' + idCat + '/' + id + '/' + lang + 'notizie' ;
window.open(link, '', opt) ;
return false;
}

function showWindowViewPlace(idNotizia,titolo_url,path){
var w = screen.availWidth ;
var h = screen.availHeight - 100 ;
var ww = 780 ; if(w < 780) ww = w ;
var l = Math.round((w - 780) / 2);
var opt = 'toolbar=no,scrollbar=auto,resizable=no,status=no,scrollbars=yes,top=40,width='+ww+',height=' + h + ',left='+l ;
var link = '/' + path + idNotizia + '-' + titolo_url + '.html' ;
window.open(link, '', opt) ;
return false;
}

function showWindow(id , idCat){

var w = screen.availWidth ;
var h = screen.availHeight - 100 ;
var ww = 780 ;
if(w < 780) 
ww = w ;

var l = Math.round((w - 780) / 2);

var opt = 'toolbar=no,scrollbar=auto,resizable=no,status=no,scrollbars=yes,top=40,width='+ww+',height=' + h + ',left='+l ;
var link = '/sardegne/0/view/' + idCat + '/' + id + '/notizie' ;

window.open(link, '', opt) ;

return false;
}

function showDiv(id , e){

var div = document.getElementById(id) ;

if(! div) return ;

if(div.style.visibility != 'visible')
div.style.visibility = 'visible' ;
else
div.style.visibility = 'hidden' ;

}

function toggleDiv(btn, id , lblShow, lblHide , e){

var div = document.getElementById(id) ;
if(! div) return ;
if(div.style.display != 'none'){
div.style.display = 'none' ;
if(btn) 
btn.innerHTML = lblShow ;
}
else{
div.style.display = 'block' ;

if(btn) 
btn.innerHTML = lblHide ;
}

}



function hideDiv(id , e){

var div = document.getElementById(id) ;
if(! div) return ;

div.style.visibility = 'hidden' ;

}
function selectedPacket( s ) {
var	idx = s.name.indexOf('_');
var pre = s.name.substring( 0, idx ) ;
var post = s.name.substring( idx + 1 ) ;
location.href = pre + s.value + post ;	
}


function openMenu( idMenu , lnk , h3 ) {
var m = document.getElementById(idMenu);

if ( ! h3 )	h3 = document.getElementById('h3_'+idMenu);

if ( m && m.className == 'closed' ) {
m.className = '' ;
if (h3) h3.style.background = '#FFF url(/images/menu_aperto.gif) no-repeat ' ;
}
else { 
return true ;
m.className = 'closed' ; 
if(h3)h3.style.background = '#FFF url(/images/menu_chiuso.gif) no-repeat ' ;
}

return false;
}