//Определение браузера пользователя
function browserDetect () {
	this.isIE = this.isOpera = this.isGecko = this.isMAC = null;
	this.agent = navigator.userAgent.toLowerCase();;
	if (window.opera) {
		this.isOpera = parseInt(window.opera.version());
	}
	if (!this.isOpera && this.agent.indexOf('msie') != -1 ) {
		this.isIE = true;
	}
	else if (navigator.product == 'Gecko') {
		this.isGecko = true;
	}
	this.isMAC = (this.agent.indexOf('mac') != -1);
}

var browser = new browserDetect();

//Инициализация после загрузки страницы
window.onload = function () {
	setUpSearchTextField();
}
window.onresize = function () {
	//var o = document.getElementById("ddd");
	//o.innerHTML = document.getElementsByTagName('body')[0].clientWidth;
}
//Открытие изображения в отдельном окне
function picOpen (pic, width, height) {
	var x = (screen.availWidth - width ) / 2;
	var y = (screen.availHeight - height ) / 2;
	var pWidth = parseInt(width);
	var pHeight = parseInt(height);
	var sFeatures = "width=" + pWidth + ", height=" + pHeight + ", toolbar=no, status=no, scrollbars=0, resizable=no, left=" + x + ", top=" + y;
	var page = window.open('', '', sFeatures);
	page.document.write('<html><head><title>Просмотр изображения</title>');
	page.document.write('<style type="text/css">');
	page.document.write('* { margin: 0; padding: 0; }');
	page.document.write('BODY { color: #000; padding: 4px 0; background: #FFF4DC; text-align: center; }');
	page.document.write('IMG { border: none; }');
	page.document.write('</style>');
	page.document.write('</head><body>');
	page.document.write('<a href="javascript:self.close()" title="закрыть окно"><img width="'+width+'" height="'+height+'" src="'+pic+'" /></a></p>');
	page.document.write('</body></html>');
	page.document.close();
	if (window.focus) page.focus();
}
function winOpen(href, target, width, height, resizable) {
	if (resizable != "yes" && resizable != "no") resizable = "yes";
	(resizable == "no") ? scrollbars = "no" : scrollbars = "yes";
	window.open(href, target, 'width=' + width + ', height=' + height + ', location=no, toolbar=no, menubar=no, status=no, scrollbars=' + scrollbars + ', resizable=' + resizable + ', ');
}
function setUpSearchTextField () {
	var searchText = document.getElementById('search-text');
	if (searchText) {
		var placeHolder = searchText.getAttribute('placeholder');
		if (placeHolder) {
			searchText.value = placeHolder;
			searchText.onfocus = function () {
				if (this.value == this.getAttribute('placeholder')) this.value = "";
			}
			searchText.onblur = function () {
				if (this.value == "") this.value = this.getAttribute('placeholder');
			}
		}
	}
}
function checkRequired (requiredFields, submitButtonId) {
	var canSubmit = true;
	for (var i = 0; i < requiredFields.length; i++) {
		if (document.getElementById(requiredFields[i]).value != '') {
			document.getElementById('r-' + requiredFields[i]).innerHTML = '';
		}
		else {
			canSubmit = false;
			document.getElementById('r-' + requiredFields[i]).innerHTML = '*';
		}
	}
	document.getElementById(submitButtonId).disabled = !canSubmit;
}

function checkRadio(n1, n2) {
	var a = document.getElementById('a' + n1);
	if (a.value != n2) {
		document.getElementById("box" + n1 + '_' + a.value).className = "unchecked";
		var box = document.getElementById("box" + n1 + '_' + n2);
		if (box.className == "checked") { box.className = "unchecked"; }
		else { box.className = "checked"; }
		a.value = n2;
		if (navigator.userAgent.indexOf("Opera") != -1) window.event.cancelBubble = true;
	}
}

function checkSearch(n) {
	var count = 0;
	var a = document.getElementById("areaSearch");
	var value = a.value.split(",");
	if (n) {
		if (value[0] == 1) {
			value[0] = 0;
			document.getElementById("box_0").checked = false;
		}
		var box = document.getElementById("box_" + n);
		if (value[n] == 0) {
			value[n] = 1;
			box.checked = true;
		}
		else {
			for (var i=0; i<value.length; i++) {
				count += parseInt(value[i]);
			}
			if (count > 1) {
				value[n] = 0;
				box.checked = false;
			}
			else {
				value[0] = 1;
				value[n] = 0;
				document.getElementById("box_0").checked = true;
				for (var i=1; i<value.length; i++) {
					document.getElementById("box_" + i).checked = false;
				}
			}
		}
		a.value = value.toString();
	}
	else {
		a.value = '1,0,0,0';
		document.getElementById("box_0").checked = true;
		for (var i=1; i<value.length; i++) {
			document.getElementById("box_" + i).checked = false;
		}
	}
}

function radioCheck(input) {
	for (i = 0; i < input.length; i++) {
		if (input[i].checked) return i; 
	}
}
