// $Id: form_scripts.js 2461 2006-11-04 09:51:40Z zeke $



var onload_handlers = new Array();

var timeout;



//

// Show/hide any tag by its id.

// parameters:

// id - element id

function fn_show_tag(id, status, stop_listen)

{

    if (document.getElementById(id)) {

        if (status == true || status == false) {

            document.getElementById(id).style.display = (status == true)?"none":"";

        } else {

            document.getElementById(id).style.display = (document.getElementById(id).style.display == "")?"none":"";

        }

    }



    if (stop_listen == true) {

        window.onscroll = '';

    }

}



//

// Select text in text input

//

function fn_select_input(select)

{

    select.select();

}



//

// Disable/enable all form elements inside the tag 

// @id - element id

// @status - boolean (true to disable and false to enable)

function fn_disable_elements(id, status)

{



    node = document.getElementById(id);

    // Process INPUT types...

    inputs = node.getElementsByTagName('INPUT');

    for (i=0;i<inputs.length;i++) {

        node.getElementsByTagName('INPUT')[i].disabled = status;

    }



    // Process TEXTAREA type...

    texts = node.getElementsByTagName('TEXTAREA');

    for (i=0;i<texts.length;i++) {

        node.getElementsByTagName('TEXTAREA')[i].disabled = status;

    }



    // Process SELECT type...

    selects = node.getElementsByTagName('SELECT');

    for (i=0;i<selects.length;i++) {

        node.getElementsByTagName('SELECT')[i].disabled = status;

    }

}



//

// Open pop-up window with detailed image

//

function fn_open_popup_image(popup_script, image_width, image_height)

{

    if (image_width == 0) {

        image_width = 400;

    }

    if (image_height == 0) {

        image_height = 400;

    }

    image_width += 10;

    image_height += 10;



    if ((typeof(handle_popup_image)!='undefined') && (handle_popup_image.closed == false)) {

        handle_popup_image.close();

    }

    handle_popup_image = window.open(popup_script, 'popup_image', 'toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=no,left=200,top=100,width=' + image_width + ',height=' + image_height + ',resizable=yes');

}



function fn_escape_url(query) 

{

    var start = query.substr(0, query.indexOf('?'));

    var search = query.substr(query.indexOf('?'));

    if (search) {

        var srch_array = search.split("&");

        var temp_array = new Array();

        for (var i = 0; i < srch_array.length; i++) {

            temp_array = srch_array[i].split("=");

            start += temp_array[0] + '=' + escape(unescape(temp_array[1])) + '&'

        }

    }

    return start;

}



//

// Perform request via <SCRIPT> tag

//

function fn_http_request(script_id, url, show_status)

{

    var agt=navigator.userAgent.toLowerCase();

    var needs_escaping = ((agt.indexOf("msie") != -1) || (agt.indexOf("opera") != -1));



    if (needs_escaping) { 

        url = fn_escape_url(url);

    }



    if (typeof(show_status) == "undefined") {

        show_status = true;

    }



    if (show_status == true){

        fn_switch_loading_msg(false);

    }



    var now = new Date();

    url = url + '&prevent_cache='+now.getTime(); // Prevent script from caching



    var script_tag = document.getElementById(script_id);

    if (script_tag) {

        script_tag.parentNode.removeChild(script_tag);

    }



    script_tag = document.createElement('SCRIPT');

    script_tag.type = 'text/javascript';

    script_tag.language = 'javascript';

    script_tag.id = script_id;

    script_tag.src = url;

    document.body.appendChild(script_tag);

}



//

// String utility functions

//



// extract front part of string prior to searchString

function fn_str_get_front(mainStr,searchStr)

{

    foundOffset = mainStr.indexOf(searchStr)

    if (foundOffset == -1) {

        return null

    }

    

    return mainStr.substring(0,foundOffset)

}



// extract back end of string after searchString

function fn_str_get_end(mainStr,searchStr) 

{

    foundOffset = mainStr.indexOf(searchStr)

    if (foundOffset == -1) {

        return null

    }

    

    return mainStr.substring(foundOffset+searchStr.length,mainStr.length)

}



// insert insertString immediately before searchString

function fn_str_insert_string(mainStr,searchStr,insertStr) 

{

    var front = fn_str_get_front(mainStr,searchStr)

    var end = fn_str_get_end(mainStr,searchStr)



    if (front != null && end != null) {

        return front + insertStr + searchStr + end

    }

    

    return null

}



// remove deleteString

function fn_str_delete_string(mainStr,deleteStr) 

{

    return fn_str_replace_string(mainStr,deleteStr,"");

}



// replace searchString with replaceString

function fn_str_replace_string(mainStr,searchStr,replaceStr) 

{

    var front = fn_str_get_front(mainStr,searchStr)

    var end = fn_str_get_end(mainStr,searchStr)



    if (front != null && end != null) {

        return front + replaceStr + end

    }

    

    return mainStr;

}



// Compare 2 strings

// @haystack - where search

// @needle - what search

// @strict - exact compare or partial

function fn_compare_strings(haystack, needle, strict)

{

    if (strict == true) {

        return (haystack == needle);

    } else {

        return (haystack.indexOf(needle) == -1) ? false : true;

    }

}





//

// Check / uncheck all checkboxes in form

// @form_name - form name whose checkboxes should be checked or unchecked

// @checkbox_id - tag identifier of checkboxes that should be checked or unchecked

// @flag - can be true or false

function fn_check_all_checkboxes(form_name, flag, checkbox_id, strict)

{

    if (!checkbox_id) {

        checkbox_id = 'delete_checkbox';

    }



    if (typeof(strict) == 'undefined') {

        strict = true;

    }



    if(!(d_form = document.forms[form_name]))

        return false;



    for(i=0; i < d_form.length; i++) {

        if (fn_compare_strings(d_form.elements[i].id, checkbox_id, strict) && !d_form.elements[i].disabled)

            d_form.elements[i].checked = flag;

    }

    return true;

}



// Check email address for validity

function fn_check_email(email, msg) {



    var filter=/^([\w-]+(?:\.[\w-]+)*)@((?:[\w-]+\.)*\w[\w-]{0,66})\.([a-z]{2,6}(?:\.[a-z]{2})?)$/i;

    if (filter.test(email)) {

        return true;

    } else{

        alert(msg);

        return false;

    }

}



//

// This function checks required fields and set a mark if something wrong

//

function fn_check_fields(form_name, extra_ids)

{

    var is_ok = true;

    var seqb_exists = document.getElementById('seqb');

    var error_fields = new Array();



    if (!document.forms[form_name]) {

        return false;

    }

    

    var is_ok = true;

    var set_mark = false;



    elms = document.forms[form_name].elements;

    for (i=0; i<elms.length; i++) {

        set_mark = false;



        // Check the email field

        if (typeof(extra_ids) != 'undefined' && extra_ids[elms[i].id] == 'E') {

            if (fn_check_email(elms[i].value, email_invalid) == false) {

                if (required_fields[elms[i].id] == 'Y' || fn_is_blank(elms[i].value) == false) {

                    is_ok = false;

                    set_mark = true;

                }

            }

        // Check for integer field

        } else if (typeof(extra_ids) != 'undefined' && extra_ids[elms[i].id] == 'I') {

            if (fn_is_integer(elms[i].value) == false) {

                if (required_fields[elms[i].id] == 'Y' || fn_is_blank(elms[i].value) == false) {

                    is_ok = false;

                    set_mark = true;

                }

            }

        // Check for phone number

        } else if (typeof(extra_ids) != 'undefined' && extra_ids[elms[i].id] == 'P') {

            if (fn_is_phone(elms[i].value) == false) {

                if (required_fields[elms[i].id] == 'Y' || fn_is_blank(elms[i].value) == false) {

                    is_ok = false;

                    set_mark = true;

                }

            }

        // Check for blank value

        } else {



            if (required_fields[elms[i].id] == 'Y' && fn_is_blank(elms[i].value) == true) {

                is_ok = false;

                set_mark = true;

                error_fields[elms[i].id] = true;

                if (seqb_exists && document.getElementById('seqb').checked == true && typeof(fn_check_if_shipping) == 'function' && fn_check_if_shipping(elms[i].id)) {

                    document.getElementById('seqb').click();

                }

            }

        }

        if (document.getElementById('status_'+elms[i].id)) {

            document.getElementById('status_'+elms[i].id).innerHTML = (set_mark == true)? warning_mark : "&nbsp;";

        }

    }



    if (is_ok == false) {

        alert(message);

    }

    return is_ok;

}



//

// Checks if the value is blank

//

function fn_is_blank(val){

    if (val==null){

        return true;

    }

    for (var i=0; i<val.length; i++) {

        if((val.charAt(i)!="\t")&&(val.charAt(i)!="\n")&&(val.charAt(i)!="\r")){

            return false;

        }

    }

    return true;

}



//

// Checks if the value is integer

//

function fn_is_integer(val)

{

    if(fn_is_blank(val)){

        return false;

    }

    for(var i=0; i<val.length; i++){

        if (!fn_is_digit(val.charAt(i))) {

            return false;

        }

    }

    return true;

}



//

// Checks if the value is digit

//

function fn_is_digit(num)

{

    if(num.length>1){

        return false;

    }

    var string="1234567890";

    if (string.indexOf(num)!=-1){

        return true;

    }

    return false;

}





//

// Checks if the value is phone number

//

function fn_is_phone(phone)

{

    return phone.match(/^\(?\d{3}\)?[ ]?[\d-]*$/gi) ? true : false;

}



//

// Execute functions on page load

//

function fn_load_handlers()

{

    var i=0;

    for (i=0; i<onload_handlers.length; i++) {

        eval(onload_handlers[i]);

    }



    // If selected_section parameter is passed, add location hash

    var re = new RegExp();

    re.compile("selected_section=\(\\w\)+", "g");

    var m = location.href.match(re);

    if (m) {

        var hash = m[0].split('=');

        location.hash = '#'+hash[1];

    }

}



function fn_show_section(id, scts, redraw_all)

{



    // Fix bug with changing hash string in opera 8.5+

    /*if (is_opera && document_loaded == false) {

        onload_handlers.push("fn_show_section('"+id+"', sections ,'"+separate_form+"', "+redraw_all+");");

        return;

    }*/



    for (i in scts)

    {

        if (i == id) {

            if (document.getElementById('content_'+i)) {

                document.getElementById('content_'+i).style.display = '';

            }

            document.getElementById('tab_'+i+'_bg').className = 'section-active-tab-bg';

            document.getElementById('tab_'+i+'_left').src = tab_left_active_image_path;

            document.getElementById('tab_'+i+'_right').src = tab_right_active_image_path;

            if (document.getElementsByName('selected_section')) {

                elms = document.getElementsByName('selected_section');

                for (var k=0; k<elms.length; k++) {

                    elms[k].value = id;

                }

                location.hash = '#'+id;

            }

        } else {

            if (document.getElementById('tab_'+i+'_bg').className == 'section-active-tab-bg' || redraw_all) {

                if (document.getElementById('content_'+i)) {

                    document.getElementById('content_'+i).style.display = 'none';

                }

                document.getElementById('tab_'+i+'_bg').className = 'section-inactive-tab-bg';

                document.getElementById('tab_'+i+'_left').src = tab_left_image_path;

                document.getElementById('tab_'+i+'_right').src = tab_right_image_path;

            }

        }

    }

}



function fn_get_window_sizes()

{

    var wnd_arr = new Array();



    if (window.height) {

        wnd_arr['offset_x'] = self.pageXOffset;

        wnd_arr['offset_y'] = self.pageYOffset;

        wnd_arr['view_height'] = self.innerHeight;

        wnd_arr['view_width'] = self.innerWidth;

        wnd_arr['height'] = window.height;

        wnd_arr['width'] = window.width;

    } else {

        wnd_arr['offset_x'] = document.body.scrollLeft;

        wnd_arr['offset_y'] = document.body.scrollTop;

        wnd_arr['view_height'] = document.body.clientHeight;

        wnd_arr['view_width'] = document.body.clientWidth;

        wnd_arr['height'] = document.body.scrollHeight;

        wnd_arr['width'] = document.body.scrollWidth;

    }



    return wnd_arr;

}



function fn_switch_loading_msg(status)

{

    var dlg = document.getElementById('dialog_bg');

    var msg = document.getElementById('dialog_msg');



    var wnd_sizes = fn_get_window_sizes();

    dlg.style.left = 0;

    dlg.style.top = 0;

    dlg.style.width=wnd_sizes['width'];

    dlg.style.height=wnd_sizes['height'];



    msg.style.left = wnd_sizes['offset_x'];

    msg.style.top = wnd_sizes['offset_y'];

    msg.style.width = wnd_sizes['view_width'];

    msg.style.height = wnd_sizes['view_height'];



    fn_show_tag('dialog_bg', status);

}



function fn_check_selected(form_name, checkbox_id, no_alert, strict)

{

    if (typeof(strict) == 'undefined') {

        strict = true;

    }

    

    if (!checkbox_id) {

        checkbox_id = 'delete_checkbox';

    }



    if(!(d_form = document.forms[form_name])) {

        return false;

    }



    for(i=0; i < d_form.length; i++) {

        if (fn_compare_strings(d_form.elements[i].id, checkbox_id, strict)) {

            if (d_form.elements[i].checked) {

                return true;

            }

        }

    }

    if (!no_alert) {

        alert(error_no_items_selected);

    }

    return false;

}



function fn_delete_selected(form_name, mode_value, no_confirmation, checkbox_id, elm_name, strict) 

{



    if (typeof(strict) == 'undefined') {

        strict = true;

    }

    if (!fn_check_selected(form_name, checkbox_id, '', strict)) {

        return false;

    }

    if (!no_confirmation) {

        if (!confirm(text_delete_confirmation)) {

            return false;

        }

    }



    if (typeof(elm_name)== 'undefined' || elm_name.length == 0) {

        elm_name = mode_name;

    }



    document.forms[form_name].elements[elm_name].value = mode_value;

    document.forms[form_name].submit();

    return true;

}



function fn_ajax_update_vars(page, url, msg)

{

    // Set page input field to current page

    if (page.length > 0) {

        elms = document.getElementsByName('page');

        if (elms.length>0) {

            for (var i=0; i<elms.length; i++) {

                elms[i].value=page;

            }

        }

    }



    if (url.length > 0) {

        elms = document.getElementsByName('redirect_url');

        if (elms.length>0) {

            for (var i=0; i<elms.length; i++) {

                elms[i].value=url;

            }

        }

    }



    if (msg.length > 0) {

        window.onscroll = fn_align_element;

        document.getElementById('ajax_message').innerHTML = msg;

        fn_align_element();

        fn_show_tag('ajax_message', false);

        window.setTimeout("fn_show_tag('ajax_message', true, true);", 3000);

    }



    if (typeof(fn_check_all_exceptions) == 'function') {

        fn_check_all_exceptions(false);

    }



    fn_switch_loading_msg(true);

}



function fn_align_element()

{

    var wnd_sizes = fn_get_window_sizes();

    msg = document.getElementById('ajax_message');

    msg.style.top = wnd_sizes['offset_y'] + (wnd_sizes['view_height'] - parseInt(msg.style.height)) / 2;

    msg.style.left = wnd_sizes['offset_x'] + (wnd_sizes['view_width'] - parseInt(msg.style.width)) / 2;

}



function fn_format_num(expr, decplaces, primary)

{

    var num = '';

    var decimals = '';

    var tmp = 0;

    var k = 0;

    var i = 0;

    var thousands_separator = (primary == true) ? primary_thousands_separator : secondary_thousands_separator;

    var decimals_separator = (primary == true) ? primary_decimals_separator : secondary_decimals_separator;



    expr = fn_format_price(expr, decplaces);

    frac_part = expr.substr(expr.indexOf('.')+1) + '0000';

    num = parseInt(expr).toString();



    // Separate thousands

    if (num.length >= 4 && thousands_separator != '') {

        tmp = new Array();

        for (var i=num.length-3; i>-4 ; i=i-3) {

            k = 3;

            if (i<0) {

                k = 3 + i;

                i=0;

            }

            tmp.push(num.substr(i,k));

            if (i==0) {

                break;

            }

        }

        num = tmp.reverse().join(thousands_separator);

    }



    // Add decimals

    if (decplaces > 0) {

        num += decimals_separator + frac_part.substr(0, decplaces);

    }

    

    return num;

}



function fn_blink(cycle)

{

    if (cycle > 6) {

        be.style.visibility = 'visible';

        clearTimeout(timeout);

        return;

    }

    cycle++;

    if (be = document.getElementById('blinking_elm')) {

        be.style.visibility = (be.style.visibility == 'visible') ? 'hidden' : 'visible';

        timeout = window.setTimeout('fn_blink('+cycle+')', 500);

    }

}



function fn_form_get_request(form_name)

{

    var i = 0;

    var url = index_script + '?';



    if (document.forms[form_name]) {

        elms = document.forms[form_name].elements;

        for (i = 0; i < elms.length ; i++) {

            if (((elms[i].type == 'checkbox' || elms[i].type == 'radio') && elms[i].checked == false) || elms[i].disabled == true) {

                continue;

            }

            url += elms[i].name + '=' + elms[i].value + '&'

        }



        return url;

    }



    return false;

}



function fn_format_price(value, decplaces)

{

    if (typeof(decplaces) == 'undefined') {

        decplaces = 2;

    }



    value = parseFloat(value.toString()) + 0.00000000001;

    return value.toFixed(decplaces);

}