var isInternetExplorer = (navigator.appName.indexOf("Microsoft") != -1);

/*
future references:
var keycode = isInternetExplorer ? event.keyCode : event.which;
*/

function countSpaces(obj){
var iLength = obj.value.length;
var strSpaces = obj.value.match(new RegExp("( )", "g"));
var countSpaces = strSpaces ? strSpaces.length : 0;
return countSpaces;
}

function countLineBreaks(obj){
var iLength = obj.value.length;
var strLineBreaks = obj.value.match(new RegExp("(\\n)", "g"));
var countLineBreaks = strLineBreaks ? strLineBreaks.length : 0;
return countLineBreaks;
}

function textCounter(field, counter_field, maxlimit) {
var lineBreaks = countLineBreaks(field);
var adjust = isInternetExplorer ? 1 : 0;
if (field.value.length - lineBreaks * adjust > maxlimit){
field.value = field.value.substring(0, maxlimit + lineBreaks * adjust);
field.focus();
} else {
counter_field.value = maxlimit - field.value.length + lineBreaks * adjust;
}
}

function backToSection(backToURL, forceBackToURL){
if(forceBackToURL == null) forceBackToURL = false;
if(history.length > 1 && !forceBackToURL) history.back(); else window.location.href = backToURL;
}

function hideStatus(){
window.defaultStatus='';
window.status='';
return true;
}

function searchReset() {
tot = document.search_form.elements.length;
for(i=0;i<tot;i++) {
if (document.search_form.elements[i].type == 'text') {
document.search_form.elements[i].value = "";
} else if (document.search_form.elements[i].type == 'checkbox' || document.search_form.elements[i].type == 'radio') {
document.search_form.elements[i].checked = false;
} else if (document.search_form.elements[i].type == 'select-one') {
document.search_form.elements[i].selectedIndex = 0;
}
}
if ((document.search_form.country_id) || (document.search_form.state_id) || (document.search_form.region_id) || (document.search_form.city_id) || (document.search_form.area_id)) {
searchLocationReset();
}
}

function easyFriendlyUrl(name2friendlyurl, target, validchars, separator) {
var rusChars = new Array('а','б','в','г','д','е','ё','ж','з','и','й', 'к','л','м','н','о','п','р','с','т','у','ф','х','ч ','ц','ш','щ','э','ю','я','ы','ъ','ь');
var transChars = new Array('a','b','v','g','d','e','jo','zh','z','i','j ','k','l','m','n','o','p','r','s','t','u','f','h', 'ch','c','sh','csh','e','ju','ja','y','', '');
var from = "";
var str = "";
var i;
var exp_reg = new RegExp("[" + validchars + separator + "]");
var exp_reg_space = new RegExp("[ ]");
name2friendlyurl.toString();
from=unescape(name2friendlyurl);
from = from.toLowerCase();
var to = "";
var len = from.length;
var character, isRus;
for(i=0; i < len; i++)
{
character = from.charAt(i,1);
isRus = false;
for(j=0; j < rusChars.length; j++)
{
if(character == rusChars[j])
{
isRus = true;
break;
}
}
to += (isRus) ? transChars[j] : character;
}
name2friendlyurl = to;
for (i=0 ; i<name2friendlyurl.length; i++) {

if (exp_reg.test(name2friendlyurl.charAt(i))) {
str = str+name2friendlyurl.charAt(i);
} else {
if (exp_reg_space.test(name2friendlyurl.charAt(i))) {
if (str.charAt(str.length-1) != separator) {
str = str + separator;
}
}
}
}
if (str.charAt(str.length-1) == separator) str = str.substr(0, str.length-1);
document.getElementById(target).value = str.toLowerCase();
}









function searchLocationReset() {
if (document.search_form.country_id) {
if (document.search_form.state_id) {
while (document.search_form.state_id.options.length>1) {
deleteIndex=document.search_form.state_id.options.length-1;
document.search_form.state_id.options[deleteIndex]=null;
}
}
if (document.search_form.region_id) {
while (document.search_form.region_id.options.length>1) {
deleteIndex=document.search_form.region_id.options.length-1;
document.search_form.region_id.options[deleteIndex]=null;
}
}
if (document.search_form.city_id) {
while (document.search_form.city_id.options.length>1) {
deleteIndex=document.search_form.city_id.options.length-1;
document.search_form.city_id.options[deleteIndex]=null;
}
}
if (document.search_form.area_id) {
while (document.search_form.area_id.options.length>1) {
deleteIndex=document.search_form.area_id.options.length-1;
document.search_form.area_id.options[deleteIndex]=null;
}
}
} else if (document.search_form.state_id) {
if (document.search_form.region_id) {
while (document.search_form.region_id.options.length>1) {
deleteIndex=document.search_form.region_id.options.length-1;
document.search_form.region_id.options[deleteIndex]=null;
}
}
if (document.search_form.city_id) {
while (document.search_form.city_id.options.length>1) {
deleteIndex=document.search_form.city_id.options.length-1;
document.search_form.city_id.options[deleteIndex]=null;
}
}
if (document.search_form.area_id) {
while (document.search_form.area_id.options.length>1) {
deleteIndex=document.search_form.area_id.options.length-1;
document.search_form.area_id.options[deleteIndex]=null;
}
}
} else if (document.search_form.region_id) {
if (document.search_form.city_id) {
while (document.search_form.city_id.options.length>1) {
deleteIndex=document.search_form.city_id.options.length-1;
document.search_form.city_id.options[deleteIndex]=null;
}
}
if (document.search_form.area_id) {
while (document.search_form.area_id.options.length>1) {
deleteIndex=document.search_form.area_id.options.length-1;
document.search_form.area_id.options[deleteIndex]=null;
}
}
} else if (document.search_form.city_id) {
if (document.search_form.area_id) {
while (document.search_form.area_id.options.length>1) {
deleteIndex=document.search_form.area_id.options.length-1;
document.search_form.area_id.options[deleteIndex]=null;
}
}
}
}

function $(id) {
return document.getElementById(id);
}

function showText(text) {
return decodeURIComponent(text);
}