var is_ie = (document.all && document.getElementById);
var is_moz = (!document.all && document.getElementById);
var is_opera = (navigator.userAgent.indexOf("Opera") > -1);

function validateEmail(str)
{
    var testresults
    var filter=/^([\w-]+(?:\.[\w-]+)*)@((?:[\w-]+\.)*\w[\w-]{0,66})\.([a-z]{2,6}(?:\.[a-z]{2})?)$/i
    if (filter.test(str))
        testresults=true
    else
    {
        testresults=false
    }
    return (testresults)
}

function validateLogin(field) {
	var re = /^[0-9-'.'_']*$/;
	if (!re.test(field.value)) {
		field.value = field.value.replace(/[^0-9a-zA-Z-'-'_']/g,"");
	}
}

function addToFav(link, productid) 
{
	postBody = '&dummy='+(new Date().getTime())+'&productid='+productid+'&mod=fav&lang='+currentlang;
	
	$.ajax({
	   type: "POST", 
	   url: "/ajax.php", 
	   data: postBody, 
	   dataType: "json",
	   success: function(json){ 
			if(json.type == 'success')
			{
				$(link).fadeOut('slow');
			}
			else if(json.type == 'error')
			{
				alert(json.message); 
			}
		} 
	});	

}



function removeFromFav(productid, row)
{
	postBody = '&dummy='+(new Date().getTime())+'&productid='+productid+'&mod=fav&action=delete&lang='+currentlang;

	
	$.ajax({
	   type: "POST", 
	   url: "/ajax.php", 
	   data: postBody, 
	   dataType: "json",
	   success: function(json){ 
			if(json.type == 'success')
			{
				$('#recordborder'+productid).remove();
				//delete row
				var i=row.parentNode.parentNode.rowIndex;
				var tbl=row.parentNode.parentNode.parentNode.parentNode;
				tbl.deleteRow(i);
				
 
			}
			else if(json.type == 'error')
			{
				alert(json.message); 
			}
		} 
	});	
}



function getCookie(c_name)
{
if (document.cookie.length>0)
  {
  c_start=document.cookie.indexOf(c_name + "=");
  if (c_start!=-1)
    { 
    c_start=c_start + c_name.length+1 ;
    c_end=document.cookie.indexOf(";",c_start);
    if (c_end==-1) c_end=document.cookie.length
    return unescape(document.cookie.substring(c_start,c_end));
    } 
  }
return ""
}

function setCookie(c_name,value,expiredays)
{
var exdate=new Date();
exdate.setDate(exdate.getDate()+expiredays);
document.cookie=c_name+ "=" +escape(value)+((expiredays==null) ? "" : "; path=/; expires="+exdate.toGMTString());
}

function processAjaxContacts(cform,curlang) 
{  
	$('#contactmessage').html('<img src="/img/loader.gif" class="vam" />');	
	postBody = '&dummy='+(new Date().getTime())+'&mod=feedback&name='+cform.name.value+'&email='+cform.email.value+'&message='+cform.message.value+'&zahystvidspameriv='+cform.zahystvidspameriv.value+'&lang='+curlang;
	$.ajax({type:"POST",url: '/ajax.php',data: postBody, success: function(html){$('#contactmessage').html(html);$('#sequrecode').attr('src','/zahystvidspameriv.php?'+(new Date().getTime()));if (html.indexOf('feedbackMessageErr') == -1) cform.reset()}});
}


function checkContactForm(cform, curlang) {
    if (cform.name.value == "" )
    {
		if (curlang == 'ru')
			errmsg = 'Введите свое имя!';
		else if (curlang == 'ua')
			errmsg = 'Введіть своє ім\'я!';
		else
			errmsg = 'Enter your name!';
		
		$('#contactmessage').html('<span  class="feedbackMessageErr">'+errmsg+'</span>');
        cform.name.focus();
        return false;
    }
	
	if (cform.email.value != "" )
    {
		if(!validateEmail(cform.email.value)) {
			if (curlang == 'ru')
				errmsg = 'Введите корректный e-mail!';
			else if (curlang == 'ua')
				errmsg = 'Введіть коректний e-mail!';
			else
				errmsg = 'Enter valid e-mail!';
			$('#contactmessage').html('<span  class="feedbackMessageErr">'+errmsg+'</span>');
			cform.email.focus();
			return false;				
		}	
    }

    if (cform.message.value == "" )
    {
		if (curlang == 'ru')
			errmsg = 'Введите свое сообщение!';
		else if (curlang == 'ua')
			errmsg = 'Введіть повідомлення!';
		else
			errmsg = 'Enter your message!';	
		$('#contactmessage').html('<span  class="feedbackMessageErr">'+errmsg+'</span>');
        cform.message.focus();
        return false;
    }
    if (cform.zahystvidspameriv.value == "" )
    {
		if (curlang == 'ru')
			errmsg = 'Введите код!';
		else if (curlang == 'en')
			errmsg = 'Enter code!';
		else
			errmsg = 'Введіть код!';			
		$('#contactmessage').html('<span  class="feedbackMessageErr">'+errmsg+'</span>');
			
        cform.zahystvidspameriv.focus();
        return false;
    } 

	//$('contactmessage').innerHTML = '<img  src="/img/progressbar.gif"  />';

    processAjaxContacts(cform,curlang);
	return false;

}


// Process commenting
function sbmComment(comment_post_id,comment_type,comment_text, comment_subscribe) {
	$('#commentform').hide();	
	$('#comments-loading').show();
	if (comment_subscribe.checked)
		subscribe = comment_subscribe.value;
	else
		subscribe = 0;
	postBody = 'dummy='+(new Date().getTime())+'&mod=comments&pid='+comment_post_id+'&comment='+encodeURIComponent(comment_text.value)+'&type='+comment_type+'&lang='+currentlang+'&subscribe='+subscribe;
	$.ajax({type: "POST", url: "/ajax.php", data: postBody, success: function(html){ $('#comments-loading').hide();$("#commentsblock").empty().html(html).fadeIn('slow'); } });		
	comment_text.value = '';
}



function showCommentForm()
{
	var d=document.getElementById("commentform");
	if(d)
	{
		ce = document.getElementById("comment-error");
		if (ce)
			ce.style.display='none';
		if (d.style.display == 'block')
			d.style.display = 'none';
		else
		{
			d.style.display = 'block';
			d.focus();
		}
	}
}

function goToTop(){
	$('#maincontent').animate({scrollTop: '0px'}, 700);
}


function isNumber(field) {
	var re = /^[0-9'.']*$/;
	if (!re.test(field.value)) {
		field.value = field.value.replace(/[^0-9'.']/g,"");
	}
}


function formDefaultValues() {
	var fields = $("input.default-value");
  	if (!fields) {
    	return;
  	}
  	
  	fields.blur(
		function(){
			if ($(this).val()=='')
				$(this).prev('label').show();
		}
	);
  	
  	fields.change(
		function(){
			if ($(this).val()!='')
				$(this).parent().prev('label').hide();
		}
	);
	
	fields.mouseover(
		function(){
			if ($(this).val()!='')
				$(this).prev('label').hide();
		}
	);
	
	fields.focus(
		function(){
			$(this).prev('label').hide();
		}
	);
}

/**
 * getElementsByClassName()
 * Written by Jonathan Snook, http://www.snook.ca/jonathan
 * Add-ons by Robert Nyman, http://www.robertnyman.com
*/

function getElementsByClassName(oElm, strTagName, strClassName){
  var arrElements = (strTagName == "*" && oElm.all)? oElm.all : oElm.getElementsByTagName(strTagName);
  var arrReturnElements = new Array();
  strClassName = strClassName.replace(/\-/g, "\\-");
  var oRegExp = new RegExp("(^|\\s)" + strClassName + "(\\s|$)");
  var oElement;
  for (var i = 0; i < arrElements.length; i++) {
    oElement = arrElements[i];
    if (oRegExp.test(oElement.className)) {
      arrReturnElements.push(oElement);
    }
  }
  return (arrReturnElements);
}

$.fn.clearForm = function() {
  $( this ).
    find( ':text, :password, textarea' ).
      val( '' ).end().
    find( ':checkbox, :radio' ).
      attr( 'checked', false ).end().
    find( 'select' ).
      attr( 'selectedIndex', 0 );
}