//  ------------------------------------------------------
// IDENTIFICATION OF BROWSER VERSION
// This function returns a code to identify
// which browser is currently used at client side


function browserVersion() {
        var version = 0;
        if (navigator.userAgent.indexOf("MSIE") != -1) version = 1;
        else if (navigator.userAgent.indexOf("Netscape6") != -1) version = 6; 
        else if (navigator.userAgent.indexOf("Mozilla/5") != -1) version = 5; 
        else if (navigator.userAgent.indexOf("Mozilla/4") != -1) version = 4; 
        else if (navigator.userAgent.indexOf("Mozilla/3") != -1) version = 3;
        else if (navigator.userAgent.indexOf("Mozilla/2") != -1) version = 2;
        else version = 0;
        return version;
}


// CSS SELECTION
// This function allows the selection of the proper CSS
// to provide uniform display across different platforms/browsers

function selectCSS() {
var version=browserVersion();
if (version == 1 || version > 4 || navigator.appVersion.indexOf("Mac") == -1) {
   document.write("<link rel=\"stylesheet\" href=\"style.css\" type=\"text/css\">"); }
else { 
   document.write("<link rel=\"stylesheet\" href=\"stylens.css\" type=\"text/css\">"); }
return true;
}

// AUTOMATIC LAST-UPDATED-ON
// This functions automatically inserts the date of the last
// modification of a page in the format: Month Day, Year
var months = new Array(13);
months[1] = "January";
months[2] = "February";
months[3] = "March";
months[4] = "April";
months[5] = "May";
months[6] = "June";
months[7] = "July";
months[8] = "August";
months[9] = "September";
months[10] = "October";
months[11] = "November";
months[12] = "December";

function last_update() {
  dateObj = new Date(document.lastModified);
  lmonth = months[dateObj.getMonth() + 1];
  date = dateObj.getDate();
  fyear = dateObj.getYear();
  if (browserVersion() != 1) {
     fyear += 1900; }
  document.write(lmonth + " " + date + ", " + fyear);
}

// STANDARD PAGE FOOTER
function pageFooter() {
   document.write("<p><br /><small><i>Page last updated on ");
   last_update();
   document.write("<br />&copy; GrigioSoft - 2004</i></small></p>");
}


// SWAP HYPER-IMAGES ON MOUSE FOCUS
function imgFocusOn (imgName) {
   document[imgName].src = "./images/sel_"+imgName+".jpg";
   }

function imgFocusOut (imgName) {
   document[imgName].src = "./images/"+imgName+".jpg";
   }
   
// CENTER TEXT IN OLDER BROWSER
function centerStart () {
var version=browserVersion();

if (version > 1 && version < 5) {
   document.write ("<center>"); }
else {
   document.write ("<div align=\"center\">"); }
}

function centerStop () {
var version=browserVersion();

if (version > 1 && version < 5) {
   document.write ("</center>"); }
else {
   document.write ("</div>"); }
}


// Consent operations
function annulla(newUrl) {
		window.open (newUrl, "_top");
	}

function prosegui(newUrl) {
		window.open (newUrl, "_top");
	}



// ------------------------------------------------------
// OPEN AUXILIARY MENU WINDOW (NO SCROLLBARS)
// This function opens an auxiliary browser window, without
// toolbar, menu, status bar and scroll bar.
// Purpose: to display context sensitive help information 
// or additional menu 
// Input parameters: 
//     loc = URL of the file to be loaded in the window
//     ww = width of the window (pixel)
//     wh = height of the window (pixel)

function openWindow(loc,ww,wh) {
    output=window.open(loc,"aux",'alwaysRaised=yes,toolbar=no,scrollbars=no,directories=no,status=no,menubar=no,width='+ww+',height='+wh);
   }


// ------------------------------------------------------
// OPEN AUXILIARY MENU WINDOW (WITH SCROLLBARS)
// This function opens an auxiliary browser window, without
// toolbar, menu, status bar but with scroll bar enabled.
// Purpose: to display auxiliary context sensitive information 
// Input parameters: 
//     loc = URL of the file to be loaded in the window
//     ww = width of the window (pixel)
//     wh = height of the window (pixel)

function openScrollWindow(loc,ww,wh) {
    output=window.open(loc,"aux",'alwaysRaised=yes,toolbar=no,scrollbars=yes,directories=no,status=no,menubar=no,width='+ww+',height='+wh);
   }

// ------------------------------------------------------
// SELECT MOST SUITABLE STYLE SHEETS FOR USER BROWSER
// This funcion selects the most suitable style sheets 
// to grant uniform presentation across different browsers
// function for level-1 relative links

function selectCss() {
if ((browserVersion() > 3) && (navigator.appVersion.indexOf("Mac") != -1)) {
   document.write("<link rel=\"stylesheet\" href=\"stylens.css\" type=\"text/css\">"); }
else { 
   document.write("<link rel=\"stylesheet\" href=\"style.css\" type=\"text/css\">"); }
}

// function selectCss() {
// if (navigator.appName == "Microsoft Internet Explorer")  {
//    document.write("<link rel=\"stylesheet\" href=\"style.css\" type=\"text/css\">"); }
// else if ((navigator.appVersion.indexOf("Mac") != -1)) {
//    document.write("<link rel=\"stylesheet\" href=\"stylens.css\" type=\"text/css\">"); }
// else { 
//    document.write("<link rel=\"stylesheet\" href=\"style.css\" type=\"text/css\">"); }
// }

// function for level-2 relative links

function selectCss2() {
if (navigator.appName == "Microsoft Internet Explorer")  {
   document.write("<link rel=\"stylesheet\" href=\"../style.css\" type=\"text/css\">"); }
else if ((navigator.appVersion.indexOf("Mac") != -1)) {
   document.write("<link rel=\"stylesheet\" href=\"../stylens.css\" type=\"text/css\">"); }
else { 
   document.write("<link rel=\"stylesheet\" href=\"../style.css\" type=\"text/css\">"); }
}

// function for level-3 relative links

function selectCss3() {
if (navigator.appName == "Microsoft Internet Explorer")  {
   document.write("<link rel=\"stylesheet\" href=\"../../style.css\" type=\"text/css\">"); }
else if ((navigator.appVersion.indexOf("Mac") != -1)) {
   document.write("<link rel=\"stylesheet\" href=\"../../stylens.css\" type=\"text/css\">"); }
else { 
   document.write("<link rel=\"stylesheet\" href=\"../../style.css\" type=\"text/css\">"); }
}

// FORM-MAIL 1
  function sendMail() {
//    if (document.forms[0].recipient.value == "") {
//       alert("No recipient has been specified!");
//       return false;
//    }

//    if (document.forms[0].message.value == "") {
//       alert("No message has been entered!");
//       return false;
//    }

//    if (document.forms[0].subject.value == "") {
//       document.forms[0].subject.value = "No subject";
//       return false;
//    }

    // Construct a mailto: URL with all the details:
    document.forms[0].action = "mailto:" +
                    document.forms[0].recipient.value +
                    "?subject=" +
                    document.forms[0].subject.value;
    return true;
  }


// FORM-MAIL 2
function mailIt() {
    var dataForm = document.dataForm;
    var mailForm = document.mailForm;
    var message = dataForm.body.value;
    
// redefine the mailForm action property
//    mailForm.action = "mailto:" + dataForm.recipient.value;
//    mailForm.action += "?subject=" + dataForm.subject.value;
    
// retrieve location information
    var pageTitle = "Page Title: " + document.title;
    var sentFrom = "Mailed From: " + document.location;
    var userInfo = pageTitle + "\r\n" + sentFrom + "\r\n\r\n";
    
// transfer all information from dataForm to mailForm for sending
    mailForm.mailBody.value = userInfo + message;
    
// open new window
    newWindow = window.open("", "new_Window", "status='yes', scrollbars='yes'");
    newWindow.document.clear();
    
// create a page that presents the transmitted message
    newWindow.document.write("<HTML><HEAD><TITLE>Message sent to " + dataForm.recipient.value + "</TITLE></HEAD>");
    newWindow.document.write("<BLOCKQUOTE>");
    newWindow.document.write("<BODY bgcolor='white'>");
    newWindow.document.write("<H2>The following message has been sent:</H2>");
    newWindow.document.write("Recipient: " + dataForm.recipient.value + "<p><hr><p>");
    newWindow.document.write(message + "<p>");
    newWindow.document.write("<hr><p><DIV align='right'><FORM>");
    newWindow.document.write("<INPUT type='button' value=' Close Window ' onClick='window.close();'>");
    newWindow.document.write("</FORM></DIV></BLOCKQUOTE></BODY></HTML>");
    newWindow.document.close();
    
// return true to send mail (returning false should prevent submission)
    return true;
  }