<!--
// Version 1.8
// Теперь поодерживается проврка на заполнение "как минимум 1 поля" (для этого первым параметром нужно передать список имен полей формы через запятую - вместо одного имени) и "от 1 до X полей" (для этого в 5-м поле вместо длины указывается максимальное количество заполняемых полей). Группу полей в этих случаях можно проверить на тип, но нельзя проверить на длину. Применимо главным образом для checkBox с разными именами.
// (c) 2000-2002 Matvey Bogatov, Dmitriy Schetinin, Nikolai Bobrov
// Thanx to A.Systems Internet team
// If you use this script, you are obliged to mention the authors and site of origin
// 

var _check_err_empty = 0, _check_err_maxlen = 1, _check_err_invalid = 2, _check_err_atleast = 3, _check_err_inset=4;
var _check_err_templates_ru = new Array(
'Поле "--fieldDesc--" не может быть пустым',
'Максимальным количеством символов в поле "--fieldDesc--" является --fieldLen--',
'Поле "--fieldDesc--" заполнено некорректно',
'В разделе "--fieldDesc--" должно быть выбрано хотя бы одно значение',
'В разделе "--fieldDesc--" должно быть выбрано от 1 до --fieldLen-- значений'
);
var _check_err_templates_en = new Array(
'"--fieldDesc--" cannot be empty',
'Maximum length of "--fieldDesc--" cannot be greater than --fieldLen--',
'--fieldDesc-- is invalid',
'"--fieldDesc--" section must have at least 1 value selected',
'"--fieldDesc--" section must have 1 to --fieldLen-- values selected'
);

// -----------------------------------------------------------------------------------------------

var _check_err_count = 0;
var _check_err_form = null;
var _check_err = null;

function t_check_err()
{
	this.text = '';
	this.field_name = '';
	this.field_desc = '';
	this.field_type = '';
	this.focus = null;
}

// -----------------------------------------------------------------------------------------------

function form_check(form_obj, cfg_line, lang, err_count, alert_no_check)
{	if(!cfg_line.length && alert_no_check)
		if(lang=='ru')
			alert('Ни одно из полей не проверяется!');
		else
			alert('No fields to check specified!');
	if(cfg_line.substr(cfg_line.length-2,2)==';;')
		cfg_line=cfg_line.substr(0,cfg_line.length-2);
	_check_err_form = null;

	if(!form_obj) return false;
	if(typeof(form_obj) == 'string') form_obj = eval("document." + form_obj);
	if(!cfg_line) return false;
	if(!lang || !eval('_check_err_templates_' + lang)) lang = 'en';

	lang = lang.toLowerCase();
	if(!err_count) err_count = 9999999;

	_check_err_form = form_obj;

	function validateChars(str, chars)
	{	var n;
		for(n = 0; n < str.length; n++)
			if(chars.indexOf(str.charAt(n)) < 0) return false;
		return true;
	}
	
	function AddError(errType, lang, fldDesc, fldName, fldType, Focus, MaxLen)
	{
		if(!MaxLen) MaxLen = 0;
		var newi = _check_err_count, txt;
		_check_err[newi] = new t_check_err();
		_check_err[newi].field_desc = fldDesc;
		_check_err[newi].field_name = fldName;
		_check_err[newi].field_type = fldType;
		_check_err[newi].focus = Focus;
		_check_err[newi].text = ('' + eval('_check_err_templates_' + lang)[errType].toString()).replace('--fieldDesc--', fldDesc).replace('--fieldLen--', MaxLen.toString());
		_check_err_count++;
	}
	
	function trim(ss)
	{
		if(!ss) return ss;
		var n, spac = ' \t\n\r';
		ss = ss.toString();
		for(n = 0; n < ss.length; n++)
			if(spac.indexOf(ss.charAt(n)) < 0) break;
		ss = ss.substring(n, ss.length);
		for(n = ss.length - 1; n >= 0; n--)
			if(spac.indexOf(ss.charAt(n)) < 0) break;
		ss = ss.substring(0, n + 1);
		return ss;
	}

	var char_lat_lo = 'abcdefghijklmnopqrstuvwxyz';
	var char_lat_hi = char_lat_lo.toUpperCase();
	var char_lat = char_lat_lo + char_lat_hi;
	var char_rus_lo = 'абвгдеёжзийклмнопрстуфхцчшщъыьэюя';
	var char_rus_hi = char_rus_lo.toUpperCase();
	var char_rus = char_rus_lo + char_rus_hi;
	var char_digits = '1234567890';
	var char_quotes = '"\'`';
	var char_spaces = ' \t\n\r';
	var char_signs_basic = '+-*/.,=%()';
	var char_signs = '!"#$%&\'()*+,-./:;<=>?@[\\]^_`{|}~';
	var char_names = char_lat + char_rus + char_spaces + '_\'&.,';
	var char_email = char_lat + char_digits + '@._-';
	var char_phone = char_digits + '()[] +-';
	var char_number = char_digits + '+- .,eE';
	var char_integer = char_digits + '+- ';

	_check_err = null;
	_check_err = new Array();
	_check_err_count = 0;

	var cfg = cfg_line.split(';;');
	var m;
	// ...............................................................
	for(m = 0; m < cfg.length; m++)
	{
		var cfg_detail = cfg[m].split("::");
		var fld_name = cfg_detail[0];
		var fld_desc = cfg_detail[1];
		var fld_attrs = cfg_detail[2];
		var fld_req = (cfg_detail[3] == 'req'); 
		var fld_maxlen = Number.MAX_VALUE;
		if(cfg_detail[4]) fld_maxlen = parseInt(cfg_detail[4]);
		var fld_focus = null;
		var fld_collection = null, fld_element = null;
        var fld_set=fld_name.split(",");
        if(!(fld_set.length-1))
		{
			if(!form_obj.elements[fld_name])
			{ 
				alert('INTERNAL ERROR:\nПоля с именем "' + fld_name + '" не существет в форме!'); 
				continue;
			}
			if(form_obj.elements[fld_name].type)
			{
				fld_element = form_obj.elements[fld_name];
				fld_focus = fld_element;
				fld_type = form_obj.elements[fld_name].type;
			}
			else
			{
	            fld_collection = form_obj.elements[fld_name];
				fld_focus = fld_collection[0];
				fld_type = fld_focus.type;
			}
			
			// ...............................................................
	
	        fld_value = ''; 
			switch(fld_type)
			{
				case 'radio': 
	                if(fld_collection)
						for (oo = 0; oo < fld_collection.length; oo++)
						{
							if(fld_collection[oo].checked) fld_value += fld_collection[oo].value + ', ';
						}
						else
							if(fld_element.checked) fld_value += fld_element.value + ', ';
				break;
				case 'checkbox':
					if(fld_collection)
						for (oo = 0; oo < fld_collection.length; oo++)
						{
							if(fld_collection[oo].checked) fld_value += fld_collection[oo].value + ', ';
						}
					else
						if(fld_element.checked) fld_value += fld_element.value + ', ';
				break;
				case 'select-one': 
					if(fld_element.selectedIndex >= 0)
						fld_value = fld_element.options[fld_element.selectedIndex].value;
				break;
				case 'select-multiple':
					fld_value = '';
					fld_collection = fld_element.options;
					for (oo = 0; oo < fld_collection.length; oo++)
					{
						var el = fld_collection[oo].value;
						if(fld_collection[oo].selected && el) fld_value += el + ', ';
					}
					break;
				default:
					fld_value = fld_element.value;
			}
	
			// ...............................................................
	
			fld_value = trim(fld_value);
			suberr = true;
	
			if(fld_value) if(fld_value.length > fld_maxlen)
			{
				suberr = true;
				AddError(_check_err_maxlen, lang, fld_desc, fld_name, fld_type, fld_focus, fld_maxlen);
				continue;
			}
	
			if(fld_req && fld_value == '')
			{
				suberr = true;
				AddError(_check_err_empty, lang, fld_desc, fld_name, fld_type, fld_focus, fld_maxlen);
				continue;
			}
	
			// ...............................................................
	
			suberr = true;
			fld_attrs = fld_attrs.toLowerCase();
			if(fld_value == '') { suberr = false; continue; }
	
			switch(fld_attrs)
			{
				case 'email':
					if(validateChars(fld_value, char_email) && fld_value.length >= 5)
					{
						var indAt, indPt, len;
						indAt = fld_value.indexOf('@');
						indPt = fld_value.lastIndexOf('.');
						len = fld_value.length;
						if(indAt > 0 && indPt > indAt + 1 && indPt < len - 1) suberr = false;
					}
				break;
				case 'phone':
				case 'fax':
					if(validateChars(fld_value, char_phone)) suberr = false;
				break;
				case 'number':
					if(validateChars(fld_value, char_number)) suberr = false;
				break;
				case 'integer':
					if(validateChars(fld_value, char_integer)) suberr = false;
				break;
				case 'string':
					if(validateChars(fld_value, char_names + char_digits + char_signs_basic)) suberr = false;
				break;
				case 'date':
					var dfmt = 'mm/dd/yy [hh:mm]';
					if(lang == 'ru') dfmt = 'dd.mm.yy [hh:mm]';
					if(check_date(fld_value, dfmt) == 0) suberr = false;
				break;
	            case 'longdate':
					var dfmt = 'mm/dd/yy [hh:mm]';
					if(lang == 'ru') dfmt = 'dd.mm.yy [hh:mm]';
					if(check_date(fld_value, dfmt, 'long') == 0) suberr = false;
				break;
	            case 'shortdate':
					var dfmt = 'mm/dd/yy [hh:mm]';
					if(lang == 'ru') dfmt = 'dd.mm.yy [hh:mm]';
					if(check_date(fld_value, dfmt, 'short') == 0) suberr = false;
				break;
				case 'datetime':
					var dfmt = 'mm/dd/yy hh:mm';
					if(lang == 'ru') dfmt = 'dd.mm.yy hh:mm';
				    if(check_date(fld_value, dfmt) == 0) suberr = false;
				break;
				default:
					if(fld_attrs.substring(0, 1) == '+')
					{
						var attrs_sub = fld_attrs.split('+');
						var ats;
						var char_test;
						for(ats = 1, char_test = ''; ats < attrs_sub.length; ats++)
							if(attrs_sub[ats].substring(0, 1) == '#')
								char_test += String.fromCharCode(parseInt(attrs_sub[ats].substring(1, attrs_sub[ats].length)));
							else if(eval('char_' + attrs_sub[ats]))
								char_test += eval('char_' + attrs_sub[ats]);
						if(validateChars(fld_value, char_test)) suberr = false;
					}
					else suberr = false;
					break;
			}
			if(suberr)
			{
				AddError(_check_err_invalid, lang, fld_desc, fld_name, fld_type, fld_focus, fld_maxlen);
				err = true;
			}
			if(suberr) if(_check_err_count >= err_count) break;
        }
        else
        {
			var _any_checked = 0;
			for(i=0;i<fld_set.length;i++)
			{ 
				if(form_obj.elements[fld_set[i]].length)
					if(form_obj.elements[fld_set[i]][0].type.toLowerCase().indexOf('text')<0)
					{ 
						for(j=0;j<form_obj.elements[fld_set[i]].length;j++) 	
							if(form_obj.elements[fld_set[i]][j].checked) _any_checked++;
					}
					else
					{
						if(form_obj.elements[fld_set[i]][0].value.length)
							_any_checked++;
					}
				else
			    	if(form_obj.elements[fld_set[i]].type.toLowerCase().indexOf('text')<0)
					{ 
						if(form_obj.elements[fld_set[i]].checked) _any_checked++;
					}
					else
					{
						if(form_obj.elements[fld_set[i]].value.length)
							_any_checked++;
		            }
        	}
			if(_any_checked<1 || _any_checked>fld_maxlen)
			{
				if(fld_maxlen==Number.MAX_VALUE)
					AddError(_check_err_atleast, lang, fld_desc, fld_set[0], fld_set[0].type, fld_focus, fld_maxlen);
				else
					AddError(_check_err_inset, lang, fld_desc, fld_set[0], fld_set[0].type, fld_focus, fld_maxlen);
				err = true;
			}
			if(fld_attrs!='any')
			{
				for(nwi=0;nwi<fld_set.length;nwi++)
				{
					cfg[cfg.length]=fld_set[nwi]+'::'+fld_desc+'::'+fld_attrs;
				}
			}
		}
	}

	// ...............................................................

	return (_check_err_count == 0);
}


function form_check_msg(msg_delimeter)
{
	var n, ret = '';
	if(!msg_delimeter) msg_delimeter = '\n';
	for(n = 0; n < _check_err_count; n++)
		ret += _check_err[n].text + (n < _check_err_count - 1 ? msg_delimeter : '');
	return ret;
}

function form_check_getfield(err_n)
{
	if(!err_n) err_n = 0;
	if(err_n < _check_err_count)
	{
		var obj = _check_err_form.elements[_check_err[err_n].field_name];
		if(obj.type) return obj; else return obj[0];
	}
	return null;
}
//-->