// $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++;
        }

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

        return result;
}

/*
        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, "."));
        result = Math.round(num*pow)/pow;

        if (!result) {
                return 0;
        } else
                return result;
}

/*
        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 toggleLayer( whichLayer )
{
  var elem, vis;
  if( document.getElementById ) // this is the way the standards work
    elem = document.getElementById( whichLayer );
  else if( document.all ) // this is the way old msie versions work
      elem = document.all[whichLayer];
  else if( document.layers ) // this is the way nn4 works
    elem = document.layers[whichLayer];
  vis = elem.style;
  // if the style.display value is blank we try to figure it out here
  if(vis.display==''&&elem.offsetWidth!=undefined&&elem.offsetHeight!=undefined)
    vis.display = (elem.offsetWidth!=0&&elem.offsetHeight!=0)?'block':'none';
  vis.display = (vis.display==''||vis.display=='block')?'none':'block';
} 



  function printthispage() {
  window.print(); 
  }