// $Id: common.js,v 1.12.2.19 2007/06/18 07:03:54 max Exp $

//
// Enviroment identificator
//
var localIsDOM = document.getElementById?true:false;
var localIsJava = navigator.javaEnabled();
var localIsStrict = document.compatMode=='CSS1Compat';
var localPlatform = navigator.platform;
var localVersion = "0";
var localBrowser = "";
var localBFamily = "";
var isHttps = false;
if (window.opera && localIsDOM) {
	localBFamily = localBrowser = "Opera";
	if (navigator.userAgent.search(/^.*Opera.([\d.]+).*$/) != -1)
		localVersion = navigator.userAgent.replace(/^.*Opera.([\d.]+).*$/, "$1");
	else if (window.print)
		localVersion = "6";
	else
		localVersion = "5";
} else if (document.all && document.all.item)
	localBFamily = localBrowser = 'MSIE';
if (navigator.appName=="Netscape") {
	localBFamily = "NC";
	if (!localIsDOM) {
		localBrowser = 'Netscape';
		localVersion = navigator.userAgent.replace(/^.*Mozilla.([\d.]+).*$/, "$1");
		if(localVersion != '')
			localVersion = "4";
	} else if(navigator.userAgent.indexOf("Safari") >= 0)
		localBrowser = 'Safari';
	else if (navigator.userAgent.indexOf("Netscape") >= 0)
		localBrowser = 'Netscape';
	else if (navigator.userAgent.indexOf("Firefox") >= 0)
		localBrowser = 'Firefox';
	else 
		localBrowser = 'Mozilla';
	
}
if (navigator.userAgent.indexOf("MSMSGS") >= 0)
	localBrowser = "WMessenger";
else if (navigator.userAgent.indexOf("e2dk") >= 0)
	localBrowser = "Edonkey";
else if (navigator.userAgent.indexOf("Gnutella") + navigator.userAgent.indexOf("Gnucleus") >= 0)
	localBrowser = "Gnutella";
else if (navigator.userAgent.indexOf("KazaaClient") >= 0)
	localBrowser = "Kazaa";

if (localVersion == '0' && localBrowser != '') {
	var rg = new RegExp("^.*"+localBrowser+".([\\d.]+).*$");
	localVersion = navigator.userAgent.replace(rg, "$1");
}
var localIsCookie = ((localBrowser == 'Netscape' && localVersion == '4')?(document.cookie != ''):navigator.cookieEnabled);

if (document.location.protocol == "https:") { 
    isHttps = true;
}

function change_antibot_image(id) {
	var image = document.getElementById(id);
	image.src = "temp";
	setTimeout('', 1000);
	image.src = xcart_web_dir+"/antibot_image.php?"+Math.random()+"&section="+id+"&regenerate=Y";
}


/*
	Find element by classname
*/
function getElementsByClassName( clsName ) {
	var arr = new Array(); 
	var elems = document.getElementsByTagName("*");
	
	for ( var cls, i = 0; ( elem = elems[i] ); i++ ) {
		if ( elem.className == clsName ) {
			arr[arr.length] = elem;
		}
	}
	return arr;
}
//
// Opener/Closer HTML block
//
function visibleBox(id,skipOpenClose) {
	elm1 = document.getElementById("open"+id);
	elm2 = document.getElementById("close"+id);
	elm3 = document.getElementById("box"+id);

	if(!elm3)
		return false;

	if (skipOpenClose) {
		elm3.style.display = (elm3.style.display == "")?"none":"";
	} else if(elm1) {
		if (elm1.style.display == "") {
			elm1.style.display = "none";
			if(elm2)
				elm2.style.display = "";
			elm3.style.display = "none";
			var class_objs = getElementsByClassName('DialogBox');
			for (var i = 0; i < class_objs.length; i++) {
				class_objs[i].style.height = "1%";
			}
		} else {
			elm1.style.display = "";
			if(elm2)
				elm2.style.display = "none";
			elm3.style.display = "";
		}
	}
}

/*
	URL encode
*/
function urlEncode(url) {
	return url.replace(/\s/g, "+").replace(/&/, "&amp;").replace(/"/, "&quot;")
}

/*
	Math.round() wrapper
*/
function round(n, p) {
	if (isNaN(n))
		n = parseFloat(n);
	if (!p || isNaN(p))
		return Math.round(n);
	p = Math.pow(10, p);
	return Math.round(n*p)/p;
}

/*
	Price format
*/
function price_format(price, thousand_delim, decimal_delim, precision) {
	var thousand_delim = (arguments.length > 1 && thousand_delim !== false) ? thousand_delim : number_format_th;
	var decimal_delim = (arguments.length > 2 && decimal_delim !== false) ? decimal_delim : number_format_dec;
	var precision = (arguments.length > 3 && precision !== false) ? precision : number_format_point;

	if (precision > 0) {
		precision = Math.pow(10, precision);
		price = Math.round(price*precision)/precision;
		var top = Math.floor(price);
		var bottom = Math.round((price-top)*precision)+precision;

	} else {
		var top = Math.round(price);
		var bottom = 0;
	}

	top = top+"";
	bottom = bottom+"";
	var cnt = 0;
	for (var x = top.length; x >= 0; x--) {
		if (cnt % 3 == 0 && cnt > 0 && x > 0)
			top = top.substr(0, x)+thousand_delim+top.substr(x, top.length);

		cnt++;
	}

	return (bottom > 0) ? (top+decimal_delim+bottom.substr(1, bottom.length)) : top;
}

/*
	Substitute
*/
function substitute(lbl) {
var x, rg;
	for(x = 1; x < arguments.length; x+=2) {
		if(arguments[x] && arguments[x+1]) {
			rg = new RegExp("\\{\\{"+arguments[x]+"\\}\\}", "gi");
			lbl = lbl.replace(rg,  arguments[x+1]);
			rg = new RegExp('~~'+arguments[x]+'~~', "gi");
			lbl = lbl.replace(rg,  arguments[x+1]);
		}
	}
	return lbl;
}

function getWindowOutWidth(w) {
	if (!w)
		w = window;
	if (localBFamily == "MSIE")
		return w.document.body.clientWidth;
	else
		return w.outerWidth;
}

function getWindowOutHeight(w) {
	if (!w)
		w = window;
	if (localBFamily == "MSIE")
		return w.document.body.clientHeight;
	else
		return w.outerHeight;
}

function getWindowWidth(w) {
	if (!w)
		w = window;
    if (localBFamily == "MSIE")
		return w.document.body.clientWidth;
    else 
		return w.innerWidth;
}

function getWindowHeight(w) {
	if (!w)
		w = window;
    if (localBFamily == "MSIE")
		return w.document.body.clientHeight;
	else
		return w.innerHeight;
}

function getDocumentHeight(w){
	if (!w)
		 w = window;
	if (localBFamily == "MSIE" || (localBFamily == "Opera" && localVersion >= 7 && localVersion < 8))
		return isStrict ? w.document.documentElement.scrollHeight : w.document.body.scrollHeight;
	if (localBFamily == "NC")
		return w.document.height
	if (localBFamily == "Opera")
		return w.document.body.style.pixelHeight
}

function getDocumentWidth(w) {
	if (!w)
		w = window;
	if (localBFamily == "MSIE" || (localBFamily == "Opera" && localVersion >= 7 && localVersion < 8))
		return isStrict ? w.document.documentElement.scrollWidth : w.document.body.scrollWidth;
	if (localBFamily == "NC")
		return w.document.width;
	if (localBFamily == "Opera")
		return w.document.body.style.pixelWidth;
}

function expandWindowX(w, step, limit) {
	if (!w)
		w = window;

	if (!step)
		step = 10;

	var go = true;
	while (go) {
		if (limit && getWindowOutWidth()+step > limit)
			break;

		w.scrollTo(step, 0);
		go = w.document.documentElement.scrollLeft > 0;
		if (go)
			w.resizeBy(step, 0);
	}

	return true;
}

function expandWindowY(w, step, limit) {
	if (!w)
		w = window;

	if (!step)
		step = 10;

	var go = true;
	while (go) {
		if (limit && getWindowOutHeight()+step > limit)
			 break;

		w.scrollTo(0, step);
		go = w.document.documentElement.scrollTop > 0;
		if (go)
			w.resizeBy(0, step);
	}

	return true;
}

/*
	Check list of checkboxes
*/
function checkMarks(form, reg, lbl) {
var is_exist = false;

	if (form.elements.length == 0)
		return true;

	for (var x = 0; x < form.elements.length; x++) {
		if (form.elements[x].name.search(reg) == 0 && form.elements[x].type == 'checkbox' && !form.elements[x].disabled) {
			is_exist = true;
			if (form.elements[x].checked)
				return true;
		}
	}

	if (!is_exist)
		return true;
	else if (lbl)
		alert(lbl);
	else if (lbl_no_items_have_been_selected)
		alert(lbl_no_items_have_been_selected);
	return false;
}

/*
	Submit form with specified value of 'mode' parmaeters
*/
function submitForm(formObj, formMode) {
	if (!formObj)
		return false;
	if (formObj.tagName != "FORM") {
		if (!formObj.form)
			return false;
		formObj = formObj.form;
	}
	if (formObj.mode)
		formObj.mode.value = formMode;
	formObj.submit();
}

/*
	Analogue of PHP function sleep()
*/
function sleep(msec) {
	var then = new Date().getTime()+msec;
	while (then >= new Date().getTime()){
	}
}

/*
	Convert number from current format
	(according to 'Input and display format for floating comma numbers' option)
	to float number
*/
function convert_number(num) {
	var regDec = new RegExp(reg_quote(number_format_dec), "gi");
	var regTh = new RegExp(reg_quote(number_format_th), "gi");
	var pow = Math.pow(10, parseInt(number_format_point));
	num = parseFloat(num.replace(" ", "").replace(regTh, "").replace(regDec, "."));
	return Math.round(num*pow)/pow;
}

/*
	Check string as number
	(according to 'Input and display format for floating comma numbers' option)
*/
function check_is_number(num) {
	var regDec = new RegExp(reg_quote(number_format_dec), "gi");
	var regTh = new RegExp(reg_quote(number_format_th), "gi");
	num = num.replace(" ", "").replace(regTh, "").replace(regDec, ".");
	return (num.search(/^[0-9]+(\.[0-9]+)?$/) != -1);
}

/*
	Qutation for RegExp class
*/
function reg_quote(s) {
	return s.replace(/\./g, "\\.").replace(/\//g, "\\/").replace(/\*/g, "\\*").replace(/\+/g, "\\+").replace(/\[/g, "\\[").replace(/\]/g, "\\]");
}

function setCookie(name, value, path, expires) {
	if (typeof(expires) == 'object') {
		try {
			var days = ['Sun', 'Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat'];
			var months = ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec'];
			if (days[expires.getDay()] && months[expires.getMonth()])
				expires = days[expires.getDay()]+" "+expires.getDate()+"-"+months[expires.getMonth()]+"-"+expires.getFullYear()+" "+expires.getHours()+":"+expires.getMinutes()+":"+expires.getSeconds()+" GMT";
		} catch(e) { }
	}

	if (typeof(expires) != 'string')
		expires = false;

	document.cookie = name+"="+escape(value)+(expires ? "; expires=" + expires : "")+(path ? "; path="+path : "");
}

function deleteCookie(name) {
	document.cookie = name+"=0; expires=Fri, 31 Dec 1999 23:59:59 GMT;";
}

/*
	Clone object
*/
function cloneObject(orig) {
	var r = {};
	for (var i in orig) {
		r[i] = orig[i];
	}

	return r;
}

/*
	Get first checkbox and redirect to URL
*/
function getFirstCB(form, reg) {

	while (form.tagName && form.tagName.toUpperCase() != 'FORM')
		form = form.parentNode;

	if (!form.tagName || form.tagName.toUpperCase() != 'FORM' || form.elements.length == 0)
        return false;

	var selectedChk = false;
    for (var x = 0; x < form.elements.length; x++) {
        if (form.elements[x].name.search(reg) == 0 && form.elements[x].type == 'checkbox' && !form.elements[x].disabled && form.elements[x].checked) {
			selectedChk = form.elements[x];
			break;
        }
    }
    
    if (!selectedChk) {
		if (lbl_no_items_have_been_selected)
			alert(lbl_no_items_have_been_selected);

        return false;
	}

    return selectedChk;
}

/*
	getElementById() wrapper
*/
function _getById(id) {
	if (typeof(id) != 'string' || !id)
		return false;

	var obj = document.getElementById(id);
	if (obj && obj.id != id) {
		obj = false;
		for (var i = 0; i < document.all.length && obj === false; i++) {
			if (document.all[i].id == id)
				obj = document.all[i];
		}
	}

	return obj;
}

// undefined or not
function isset(obj) {
	return typeof(obj) != 'undefined' && obj !== null;
}


// Check - variable is function or not
function isFunction(f) {
	return (typeof(f) == 'function' || (typeof(f) == 'object' && (f+"").search(/\s*function /) === 0));
}


/************************************************************************************************************
	(C) www.dhtmlgoodies.com, October 2005
	
	This is a script from www.dhtmlgoodies.com. You will find this and a lot of other scripts at our website.	
	
	Terms of use:
	You are free to use this script as long as the copyright message is kept intact. However, you may not
	redistribute, sell or repost it without our permission.
	
	Thank you!
	
	www.dhtmlgoodies.com
	Alf Magne Kalleland
	
	************************************************************************************************************/	
	// You can modify these three values
	var slideshow2_noFading = false;	// Just normal show/hide without fading ?
	var slideshow2_timeBetweenSlides = 1500;	// Amount of time between each image(1000 = 1 second)
	var slideshow2_fadingSpeed = 20;	// Speed of fading
	
	
	/* Don't change any of these values */
	var slideshow2_galleryHeigh;	// Height of galery	
	var slideshow2_galleryContainer;	// Reference to the gallery div
	var slideshow2_galleryWidth;	// Width of gallery	
	var slideshow2_slideIndex = -1;	// Index of current image shown
	var slideshow2_slideIndexNext = false;	// Index of next image shown
	var slideshow2_imageDivs = new Array();	// Array of image divs(Created dynamically)
	var slideshow2_currentOpacity = 100;	// Initial opacity
	var slideshow2_imagesInGallery = false;	// Number of images in gallery
	
	function getGalleryImageSize(imageIndex)
	{
		if(imageIndex==slideshow2_imagesInGallery){			
			showGallery();
		}else{
			var imgObj = document.getElementById('galleryImage' + imageIndex);
			var imgWidth = imgObj.width;
			var imgHeight = imgObj.height;
			if(imgWidth>50){						
				var tmpDiv = document.createElement('DIV');
				tmpDiv.id = 'galleryDiv' + imageIndex;
				tmpDiv.style.visibility = 'hidden';
				tmpDiv.className='imageInGallery';
				slideshow2_galleryContainer.appendChild(tmpDiv);
				tmpDiv.appendChild(imgObj);
				imgObj.style.left = Math.round((slideshow2_galleryWidth - imgWidth)/2)  + "px";
				imgObj.style.top = Math.round((slideshow2_galleryHeight - imgHeight)/2)  + "px";
				tmpDiv.style.visibility = 'hidden';
				slideshow2_imageDivs.push(tmpDiv);
				imageIndex++;
				getGalleryImageSize(imageIndex);
			}else{
				setTimeout('getGalleryImageSize(' + imageIndex + ')',10);
			}
		}		
	}
	
	function showGallery()
	{
		if(slideshow2_slideIndex==-1)slideshow2_slideIndex=0; else slideshow2_slideIndex++;	// Index of next image to show
		if(slideshow2_slideIndex==slideshow2_imageDivs.length)slideshow2_slideIndex=0;
		slideshow2_slideIndexNext = slideshow2_slideIndex+1;	// Index of the next next image
		if(slideshow2_slideIndexNext==slideshow2_imageDivs.length)slideshow2_slideIndexNext = 0;
		
		slideshow2_currentOpacity=100;	// Reset current opacity

		// Displaying image divs
		slideshow2_imageDivs[slideshow2_slideIndex].style.visibility = 'visible';
		if(navigator.userAgent.indexOf('Opera')<0){
			slideshow2_imageDivs[slideshow2_slideIndexNext].style.visibility = 'visible';
		}
		
		
		if(document.all){	// IE rules
			slideshow2_imageDivs[slideshow2_slideIndex].style.filter = 'alpha(opacity=100)';
			slideshow2_imageDivs[slideshow2_slideIndexNext].style.filter = 'alpha(opacity=1)';
		}else{
			slideshow2_imageDivs[slideshow2_slideIndex].style.opacity = 0.99;	// Can't use 1 and 0 because of screen flickering in FF
			slideshow2_imageDivs[slideshow2_slideIndexNext].style.opacity = 0.01;
		}		
		

		setTimeout('revealImage()',slideshow2_timeBetweenSlides);		
	}
	
	function revealImage()
	{
		if(slideshow2_noFading){
			slideshow2_imageDivs[slideshow2_slideIndex].style.visibility = 'hidden';
			showGallery();
			return;
		}
		slideshow2_currentOpacity--;
		if(document.all){
			slideshow2_imageDivs[slideshow2_slideIndex].style.filter = 'alpha(opacity='+slideshow2_currentOpacity+')';
			slideshow2_imageDivs[slideshow2_slideIndexNext].style.filter = 'alpha(opacity='+(100-slideshow2_currentOpacity)+')';
		}else{
			slideshow2_imageDivs[slideshow2_slideIndex].style.opacity = Math.max(0.01,slideshow2_currentOpacity/100);	// Can't use 1 and 0 because of screen flickering in FF
			slideshow2_imageDivs[slideshow2_slideIndexNext].style.opacity = Math.min(0.99,(1 - (slideshow2_currentOpacity/100)));
		}
		if(slideshow2_currentOpacity>0){
			setTimeout('revealImage()',slideshow2_fadingSpeed);
		}else{
			slideshow2_imageDivs[slideshow2_slideIndex].style.visibility = 'hidden';			
			showGallery();
		}
	}
	
	function initImageGallery()
	{
		slideshow2_galleryContainer = document.getElementById('imageSlideshowHolder');
		slideshow2_galleryWidth = slideshow2_galleryContainer.clientWidth;
		slideshow2_galleryHeight = slideshow2_galleryContainer.clientHeight;
		galleryImgArray = slideshow2_galleryContainer.getElementsByTagName('IMG');
		for(var no=0;no<galleryImgArray.length;no++){
			galleryImgArray[no].id = 'galleryImage' + no;
		}
		slideshow2_imagesInGallery = galleryImgArray.length;
		getGalleryImageSize(0);		
		
	}