var _lvFw=null;
function _LvWinFocus(w) { if (w && w.focus) { _lvFw=w;  } }
function _LvWinFocusT() { if (_lvFw!=null) { _lvFw.focus();_lvFw=null;} }
function java_popup(url,name,attr) {
	var fw;
		if (attr) fw=window.open(url,name,attr);
		else if (name) fw=window.open(url,name);
		else if (url) fw=window.open(url);
		_LvWinFocus(fw);
}
function isEmail (s) {  
    var i = 1;
    var sLength = s.length;
    while ((i < sLength) && (s.charAt(i) != "@")) { 
		if( s.charAt(i) == ' ' ) return false;
		i++
    }
    if ((i >= sLength) || (s.charAt(i) != "@")) return false;
    else i += 2;
    while ((i < sLength) && (s.charAt(i) != "."))
    { i++
    }
    if ((i >= sLength - 1) || (s.charAt(i) != ".")) return false;
    else return true;
}

function NewUrlWindow( dx, dy, scrollbars, resizable, url ) {
    detailsWindow=window.open('', 'Messaggio','dependent,resizable=' + resizable + ',scrollbars=' + scrollbars + ',height=' + dy + ',width=' +dx + ',left=20,top=20');
    detailsWindow.location=url;
    detailsWindow.focus();
}

function radio_button_checker(s) {
var radio_choice = false;
for (counter = 0; counter < s.length; counter++) {
	if (s[counter].checked)
		radio_choice = true; 
	}
	if (!radio_choice) {
		return (false);
	}
	return (true);
}