/* =============================================================================
JavaScript library - (c) 2003-2004 Luigi Cocconcelli <luigi@italmedia.net>

AUTHOR:		Luigi Cocconcelli <luigi@italmedia.net>
MODIFIED:	2004 jun 19

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

//self.resizeTo(780,500);	//	absolute front window positioning

var is,d = document,CANCLICK = false,WSP = " \t\n\r",DGTS = "0123456789",
SADR = "info",SDOM = "sarasotanet",STLD = "biz";

function bwTest() {
	var b = navigator.appName;
	if (b == "Netscape") this.b = "ns";
	else if (b =="Microsoft Internet Explorer") this.b = "ie";
	else this.b = b;
	this.v = parseInt(navigator.appVersion);
	this.ns = ((this.b == "ns") && (this.v >= 4));
	this.ns4 = ((this.b == "ns") && (this.v == 4));
	this.ns5 = ((this.b == "ns") && (this.v == 5));
	this.ie = ((this.b == "ie") && (this.v >= 4));
	this.ie4 = (navigator.userAgent.indexOf('MSIE 4') > 0);
	this.ie5 = (navigator.userAgent.indexOf('MSIE 5') > 0);
	if (this.ie5) this.v = 5;
	this.min = (this.ns || this.ie); }

is = new bwTest();

if (is.ns4) {
	d.alinkColor="#6699cc";		//	css <a:hover>
	d.vlinkColor="#336699"; }	//	css <a:visited>

function canSubmit(F) {
	// DON'T PUT F.submit() OR FORMS WENT SUBMITTED 2 TIMES
	if (CANCLICK) { F.reset(); return false }
	CANCLICK = true; return true }

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

function warn(s) { return alert(unescape(s)) }

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

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

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

function isInteger(s) {
	var i,c; 
	if (isEmpty(s)) return (isInteger.arguments[1] == true);
	for (i = 0; i < s.length; i++) {
		c = s.charAt(i); if (DGTS.indexOf(c) < 0) return false }
	return true }

function isSelected(f,s,n) {
	if (isEmpty(n)) n = 1;
	var o = f.options.selectedIndex;
	if (o < n) {
		if (! isEmpty(f.options[o].value)) return true;
		return isWrong(f,s) }
	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(fld,s) {
	var flv = fld.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(fld,s01) }
	if ((ati < 1) || (ati != atl) || (dot - ati < 3) || (lst - dot>4) ||
		(lst - dot < 2) || (lst < 6)) return isWrong(fld,s);
	return true }

function tSCBox(f,s) { // test single CheckBox
	if (f.checked) return true;
	warn(s); return false }

function tMCBox(f,s) { // test multi CheckBox
	for (var i = 0; i < f.length; i++) {
		if (f[i].checked == true) return true }
	warn(s); return false }

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

function pathName() {	
	var l = location;
	return (l.protocol + "\/\/" + l.host + l.pathname) }

function baseHref() {
	var o="",i=0,s=pathName().split("/");
	while(i<(s.length-1)){o+=s[i]+"/";i++}return o }

function goTo(u) { location.href = u }

function goHash(n) { self.location.hash = n; return false }

function skipRecs(fcn,arg,nsk) { /*
	possible values for nsk (next skip value):
		nsk = empty -> form submit
		nsk = 1:    -> next
		nsk = 0:    -> prev		*/
	var cva = d.I.N.value;
	fcn = (fcn < 1) ? 0 : fcn - 1;
	cva = (cva < 1) ? 0 : ((cva > fcn) ? fcn : cva - 1);
	nsk = (nsk == null) ? cva : ((nsk < 1) ? 0 : ((nsk > fcn) ? fcn : nsk));
	nsk = (nsk > 0) ? ((arg == "") ? "?ks=" : arg + "&ks=") + nsk : arg;
	goTo(pathName() + nsk);
	return false }

function addr_write(addr,turl) { var _e;
	if (isEmpty(addr)) { addr = SADR }
	_e = unescape(addr + "%40" + SDOM + "." + STLD);
	if (isEmpty(turl)) {
		d.write("<a href=\"ma"+"ilto:"+_e+"\">"+_e+"<\/a>") }
	else d.write("<a href=\""+turl+"\">"+_e+"<\/a>") }

function addr(t,d,u,l) {
	document.write("<a href=\"ma"+"ilto:"+u+unescape("%40")+d+"."+t+"\">")
	if (isEmpty(l)) { document.write(u+unescape("%40")+d+"."+t) }
	else { document.write(l) }
	document.write("<\/a>") }

function openWin(winUrl,winHgt,winWdt) {
	window.open(winUrl,'winTitle','height=' + winHgt + ',width=' +
		winWdt + ',scrollbars,resizable,left=100,top=100').focus() }

function flipCase(obj,flag) {
	if (flag) obj.value = obj.value.toUpperCase();
	else obj.value = obj.value.toLowerCase();
	return true }

function setLang(obj) {
	var o = obj.options,i;
	if (o.selectedIndex > 1) {
		for (var i = 2; i < obj.length; i++) {
			if ( o[i].selected ) goTo(o[i].value) }}
	return false }

function sCol(obj) {
	var _i = "gif.welcome?t";
	for (i = 1; i < obj.length; i++) {
		if (obj.options[i].selected) _i = eval(obj.options[i].value + ".src") };
	d["colore"].src = _i; return true }

function tLogin(F) {
	if (tEmail(F.usr,s02) && tString(F.pwd,s04)) return canSubmit(F);
	return false }

function tContacts(F) {
	if (tString(F.nam,s05) &&
		tEmail(F.ema,s02) &&
		tString(F.msg,s06) &&
		tSCBox(F.ack,s16)
		) return canSubmit(F);
	return false }

function tRecPw(F) {
	if (tEmail(F.ema,s02)
		) return canSubmit();
	return false }

function tSignup(F) {
	if (tEmail(F.ema,s02) &&
		tString(F.pwd,s04) &&
		tString(F.nmf,s05) &&
		tString(F.nml,s17) &&
		tString(F.fir,s25) &&
		tString(F.piv,s26) &&
		tString(F.pho,s18) &&
		tString(F.adr,s19) &&
		tString(F.zip,s20) &&
		tString(F.cit,s21) &&
		tString(F.sta,s22) &&
		isSelected(F.rgn,s24,2) &&
		tString(F.cnt,s23) &&
		tSCBox(F.ack,s16)
		) return canSubmit(F);
	return false }

function tProfile(F) {
	if (tEmail(F.ema,s02) &&
		tString(F.pwd,s04) &&
		tString(F.nmf,s05) &&
		tString(F.nml,s17) &&
		tString(F.fir,s25) &&
		tString(F.piv,s26) &&
		tString(F.pho,s18) &&
		tString(F.adr,s19) &&
		tString(F.zip,s20) &&
		tString(F.cit,s21) &&
		tString(F.sta,s22) &&
		isSelected(F.rgn,s24,2) &&
		tString(F.cnt,s23)
		) return canSubmit(F);
	return false }

function tQty(F,q) {
	var _q = parseInt(F.qty.value,10);
	if (_q != q) {
		if (isNaN(_q) || (_q < 1)) { F.qty.value = 0 }
		return canSubmit(F) }
	return false }

function edCart(F,v) {
	if (canSubmit(F)) { F.ka.value = v; F.submit() } return false }

function buyMe(F,v) {
	var _q = parseInt(F.qty.value,10),_v = ((v) ? v : 21);
	if (isNaN(_q) || (_q < 1)) { F.qty.value = 0; return isWrong(F.qty,s08) }
	return edCart(F,_v) }

//	must live after functions

	defaultStatus = d.title;