/* =============================================================================
JavaScript library - (copyleft 2003) Luigi Cocconcelli <luigi@italmedia.net>

MODIFIED:  2003 jun 18
AUTHOR:    Luigi Cocconcelli <luigi@italmedia.net>

DESCRIPTION:
	Central place for all the client-side functions definition
============================================================================= */

//self.resizeTo(750,650); // absolute front window positioning

var wsp = " \t\n\r", canClick = false, iP = "sgfx/",
vOK = false, aN = navigator.appName, aV = navigator.appVersion,
s01 = "L'INDIRIZZO EMAIL non puo' contenere spazi bianchi";

if (document.layers) { // align these with it's stylesheet
	document.alinkColor="00ccff"; // a:hover
	document.vlinkColor="0099cc"; // a:visited
}

if ((aN == "Netscape") && ((parseInt(aV) > 3) && (parseInt(aV) < 5))) {
	document.captureEvents(Event.KEYPRESS);
	document.onkeypress = pressed;
	vOK = true;
}

function pressed(e) {
	var F = document.coupon;
	if (F && ((e.which == 3) || (e.which == 13))) tCoupon(F);
}

function canSubmit(F) {
	if (canClick) { F.reset(); return false }
	canClick = true; return true;
}

function selectFld(f) { f.select(); f.focus(); return true }

function isEmpty(v) { return ((v == null) || (v.length < 1)) }

function isWrong(f,s) { f.select(); alert(s); f.focus(); return false }

function isBlank(fv) {
	var i, c; 
	if (isEmpty(fv)) return true; 
	for (i = 0; i < fv.length; i++) {
		c = fv.charAt(i);
		if (wsp.indexOf(c) == -1) return false;
	} 
	return true;
}

function tString(f, s) {
	if (isEmpty(f.value)) return isWrong(f, s);
	if (isBlank(f.value)) return isWrong(f, s);
	return true;
}

function tEmail(f, s) {
	var flv = f.value;
	var lst = flv.length - 1, ati = flv.indexOf("@");
	var atl = flv.lastIndexOf("@"), dot = flv.lastIndexOf(".");
	for (i = 0; i < wsp.length; i++) {
		var c = wsp.charAt(i);
		if (flv.indexOf(c) > -1) return isWrong(f, s01);
	} 
	if ((ati < 1) || (ati != atl) || (dot - ati < 3) ||
		(lst - dot>4) || (lst - dot < 2) || (lst < 6)
		) return isWrong(f, s);
	return true;
}

function tCoupon(F) {
	if (tString(F.n,"Manca il tuo NOME") &&
		tEmail(F.e,"Devi inserire un indirizzo email valido\r" +
			"(esempio: nome@server.com)") &&
		tString(F.m,"Manca il testo del MESSAGGIO")
		) return F.submit();
	else return false;
}

function printMail(addr, url) {
	if (isEmpty(addr)) addr = "info";
	var emad = unescape(addr + "%40" + "italmedia" + "." + "net");
	if (isEmpty(url)) document.write('<a href="ma' + 'ilto:' + emad + '">' +
		emad + '</a>');
	else document.write('<a href="' + url + '">' + emad + '</a>');
}

function htmlSpace(w,h,c) {
	document.write('<table border="0" cellpadding="0" cellspacing="0"');
	if (! isEmpty(w)) document.write(' width="' + w + '"');
	document.write('><tr><td');
	if (! isEmpty(h)) document.write(' height="' + h + '"');
	if (! isEmpty(c)) document.write(' class="' + c + '"><table border="0"' +
		' cellpadding="0" cellspacing="0"><tr><td></td></tr></table');
	document.write('></td></tr></table>');
}

if (document.images) {
	dnt_a = new Image(), dnt_a.src = iP + "MenuA.gif",
	dnt_b = new Image(), dnt_b.src = iP + "MenuB.gif",
	dnt_c = new Image(), dnt_c.src = iP + "MenuC.gif",
	dnt_d = new Image(), dnt_d.src = iP + "MenuD.gif",
	dnt_w = new Image(), dnt_w.src = iP + "MenuG.gif",

	cya_o = new Image(), cya_o.src = iP + "cya2.gif",
	cya_f = new Image(), cya_f.src = iP + "cya.gif",
	mag_o = new Image(), mag_o.src = iP + "mag2.gif",
	mag_f = new Image(), mag_f.src = iP + "mag.gif",
	yel_o = new Image(), yel_o.src = iP + "gia2.gif",
	yel_f = new Image(), yel_f.src = iP + "gia.gif",
	dtp_o = new Image(), dtp_o.src = iP + "menu_c.gif",
	edi_o = new Image(), edi_o.src = iP + "menu_k.gif",
	web_o = new Image(), web_o.src = iP + "menu_m.gif",
	dat_o = new Image(), dat_o.src = iP + "menu_y.gif",
	men_f = new Image(), men_f.src = iP + "menu_f.gif";
}

function sTxt(s) {
	if (isEmpty(s)) self.status = "";
	else self.status = unescape(s);
	return true;
}

function iRol(img, tgt, txt) {
	if (document.images) {
		document[tgt].src = eval(img + '.src');
		if (txt) return sTxt(txt);
	}
}