// $Id: common.js,v 1.12.2.24 2008/04/18 12:24:52 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);
    if (image)
        image.src = xcart_web_dir+"/antibot_image.php?tmp="+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;
    var i = 200;
    while (go && i--) {
        if (limit && getWindowOutWidth()+step > limit)
            break;

        try {
            w.scrollTo(step, 0);
            go = (w.document.documentElement && w.document.documentElement.scrollLeft > 0) || (w.document.body && w.document.body.scrollLeft > 0);
            if (go)
                w.resizeBy(step, 0);

        } catch (e) {
            return false;
        }
    }

    return true;
}

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

    if (!step)
        step = 10;

    var go = true;
    var i = 200;
    while (go && i--) {
        if (limit && getWindowOutHeight()+step > limit)
            break;

        try {
            w.scrollTo(0, step);
            go = (w.document.documentElement && w.document.documentElement.scrollTop > 0) || (w.document.body && w.document.body.scrollTop > 0);
            if (go)
                w.resizeBy(0, step);

        } catch(e) {
            return false;
        }
    }

    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));
}


function chProdImage(src, id, det){
    var img = document.getElementById(id);
    var aTag = document.getElementById('a_product_thumbnail');
    if(img)
        img.src = src;
    if(aTag)
        aTag.href = det;
}

function globalLeft(eElement)
{
    if (!eElement && this)                    // if argument is invalid
    {                                         // (not specified, is null or is 0)
        eElement = this;                       // and function is a method
    }                                         // identify the element as the method owner

    var DL_bIE = document.all ? true : false; // initialize var to identify IE

    var nLeftPos = eElement.offsetLeft;       // initialize var to store calculations
    var eParElement = eElement.offsetParent;  // identify first offset parent element

    while (eParElement != null)
    {                                         // move up through element hierarchy

        if(DL_bIE)                             // if browser is IE, then...
        {
            if( (eParElement.tagName != "TABLE") && (eParElement.tagName != "BODY") )
            {                                   // if parent is not a table or the body, then...
                nLeftPos += eParElement.clientLeft; // append cell border width to calcs
            }
        }
        else                                   // if browser is Gecko, then...
        {
            if(eParElement.tagName == "TABLE")  // if parent is a table, then...
            {                                   // get its border as a number
                var nParBorder = parseInt(eParElement.border);
                if(isNaN(nParBorder))            // if no valid border attribute, then...
                {                                // check the table's frame attribute
                    var nParFrame = eParElement.getAttribute('frame');
                    if(nParFrame != null)         // if frame has ANY value, then...
                    {
                        nLeftPos += 1;             // append one pixel to counter
                    }
                }
                else if(nParBorder > 0)          // if a border width is specified, then...
                {
                    nLeftPos += nParBorder;       // append the border width to counter
                }
            }
        }
        nLeftPos += eParElement.offsetLeft;    // append left offset of parent
        eParElement = eParElement.offsetParent; // and move up the element hierarchy
    }                                         // until no more offset parents exist
    return nLeftPos;                          // return the number calculated
}

function showlayer(layer,obj){
    var myLayer=document.getElementById(layer);
    left = globalLeft(obj);
    if(myLayer.style.display=="none" || myLayer.style.display==""){
        myLayer.style.display="block";
        myLayer.style.left = (left-270)+'px';
    } else {
        myLayer.style.display="none";
    }
}