function disablePage(){
   if (window.innerHeight && window.scrollMaxY) {// Firefox
		yWithScroll = window.innerHeight + window.scrollMaxY;
		xWithScroll = window.innerWidth + window.scrollMaxX;
	} else if (document.body.scrollHeight > document.body.offsetHeight){ // all but Explorer Mac
		yWithScroll = document.body.scrollHeight;
		xWithScroll = document.body.scrollWidth;
	} else { // works in Explorer 6 Strict, Mozilla (not FF) and Safari
		yWithScroll = document.body.offsetHeight;
		xWithScroll = document.body.offsetWidth;
  	}

  document.getElementById("greypage").style.height = yWithScroll + 'px';
  showDiv("greypage");
}

function enablePage(){
  hideDiv("greypage");
}

function centerDiv(id){
  var myWidth = 0, myHeight = 0;
  if( typeof( window.innerWidth ) == 'number' ) {
    //Non-IE
    myWidth = window.innerWidth;
    myHeight = window.innerHeight;
  } else if( document.documentElement && ( document.documentElement.clientWidth || document.documentElement.clientHeight ) ) {
    //IE 6+ in 'standards compliant mode'
    myWidth = document.documentElement.clientWidth;
    myHeight = document.documentElement.clientHeight;
  } else if( document.body && ( document.body.clientWidth || document.body.clientHeight ) ) {
    //IE 4 compatible
    myWidth = document.body.clientWidth;
    myHeight = document.body.clientHeight;
  }

  var scrOfX = 0, scrOfY = 0;
  if( typeof( window.pageYOffset ) == 'number' ) {
    //Netscape compliant
    scrOfY = window.pageYOffset;
    scrOfX = window.pageXOffset;
  } else if( document.body && ( document.body.scrollLeft || document.body.scrollTop ) ) {
    //DOM compliant
    scrOfY = document.body.scrollTop;
    scrOfX = document.body.scrollLeft;
  } else if( document.documentElement && ( document.documentElement.scrollLeft || document.documentElement.scrollTop ) ) {
    //IE6 standards compliant mode
    scrOfY = document.documentElement.scrollTop;
    scrOfX = document.documentElement.scrollLeft;
  }
 
 var top = Math.ceil((new Number(myHeight))/2 - (new Number(document.getElementById(id).style.height.slice(0, -2)))/2) + scrOfY;
 var left = Math.ceil((new Number(myWidth))/2 - (new Number(document.getElementById(id).style.width.slice(0, -2)))/2) + scrOfX;

 document.getElementById(id).style.top = top + 'px';
 document.getElementById(id).style.left = left + 'px';
}

function showDiv(id){
	//document.getElementById(id).style.display = "block";
	document.getElementById(id).style.visibility = "visible";
}

function hideDiv(id){
  //document.getElementById(id).style.display = "none";
  document.getElementById(id).style.visibility = "hidden";
}

function changeStar(id, cid)
{
	var starName = 'full_star.png';
	
	for(var i=1; i<=5; i++)
	{
		document.getElementById('star_empty_'+i+'_'+cid).src='/images/empty_star.png';
	}
		
	for(var i=1; i<=id; i++)
	{
		document.getElementById('star_empty_'+i+'_'+cid).src='/images/'+starName;
	}
	return;
}

function sendFriend(keyword){
	centerDiv('send-friend');
	disablePage();
	showDiv('send-friend');
	
	var response = $.ajax({
		method: "GET",
		url: "/includes/ajax.php",
		data: "func=email_friend&keyword="+keyword,
		success: function(response){
			document.getElementById("friend").innerHTML = response;
		}
	});
}

function friendSubmit(){
	centerDiv('send-friend');
	disablePage();
	showDiv('send-friend');
	/*if(friendForm.elements['error'].value == 1){
		document.getElementById('captcha').src = document.getElementById('captcha').src + '?' + (new Date()).getMilliseconds();
	}*/
	var friendForm = document.getElementById('friendForm');
	var response = $.ajax({
		method: "GET",
		url: "/includes/ajax.php",
		data: "func=email_friend&email="+friendForm.elements['email'].value+"&name="+friendForm.elements['name'].value+"&friend_name="+friendForm.elements['friend_name'].value+"&message="+friendForm.elements['message'].value+"&capt="+friendForm.elements['capt'].value+"&send="+friendForm.elements['send'].value+"&keyword="+friendForm.elements['keyword'].value,
		success: function(response){
			document.getElementById("friend").innerHTML = response;
		}
	});	
}

function voting(rate, id){
	var div = "div_voting_"+id;
	var response = $.ajax({
		method: "GET",
		url: "/includes/ajax.php",
		data: "func=site_vote&id="+id+"&rate="+rate,
		success: function(response){
			centerDiv('vote-alert');
			disablePage();
			showDiv('vote-alert');
			
			var res = response.split("@@@@");
			if(res[0] == 'voted'){
				document.getElementById("voteAlert").innerHTML = res[1];
			} else {
				document.getElementById("voteAlert").innerHTML = res[1];
				document.getElementById(div).innerHTML = res[0];
			}
		}
	});
}

function site_counts(id, param){
	var response = $.ajax({
		method: "GET",
		url: "/includes/ajax.php",
		data: "func=site_counts&id="+id+"&param="+param
	});
}

function getSubCategories(sel){
	var catId = sel.options[sel.selectedIndex].value;
	document.getElementById('subcatalog').innerHTML = '<div align="center" style="width:220px;"><img src="/images/loading.gif"/></div>';
	var response = $.ajax({
		method: "GET",
		url: "/includes/ajax.php",
		data: "func=get_subcategories&cat_id="+catId,
		success: function(response){
			document.getElementById('subcatalog').innerHTML = response;
			
			$("#adv-select3").customselectbox().bind('change', function(){
				$('#adv-select3').appendTo('#adv-select3 .custom-cats3').fadeOut(5000, function(){
					$(this).remove();
				});
			});
		}
	});
}

function createTagSpan(name, id){
	var content = "<span class='tag-span-block' id='T_"+ id +"'>"+ name
				  +"<span class='tag-span-close' onclick='remove_tag_span("+ id +")'>x</span>"
				  +"<input type='hidden' value='"+ id +"' name='tag_id[]' />"
				  +"</span>";
	
	return content;
}

function remove_tag_span(id){
	$('#T_'+ id).remove();
	document.getElementById('tag_content').value = document.getElementById('tag_box').innerHTML;
}

function add_new_tag(){
	var tagName = document.getElementById('tags').value;
	
	var response = $.ajax({
		method: "GET",
		url: "/includes/ajax.autocomplete.php",
		data: "func=add_new_tag&name="+tagName,
		success: function(response){
			if(response != "exists"){
				var res = response.split("@@@@");
				var tagId = res[0];
				var tagName = res[1];
				
				var tagBox = document.getElementById('tag_box').innerHTML;
				var tagSpan = "";
				var addTagBox = "";
				
				if(!document.getElementById('T_'+ tagId)) {
					tagSpan = createTagSpan(tagName, tagId);
				}
				
				document.getElementById('tags').value = "";
		        addTagBox = tagBox+tagSpan;
		        $('#tag_box').html(addTagBox);
		        document.getElementById('tag_content').value = addTagBox;
			} else {
				document.getElementById('tags').value = "";
			}
		}
	});
}

// создаём плагин maxlength
jQuery.fn.maxlength = function(options) {
  // определяем параметры по умолчанию и прописываем указанные при обращении
  var settings = jQuery.extend({
    maxChars: 500, // максимальное колличество символов
    leftChars: "character left" // текст в конце строки информера
  }, options);
  // выполняем плагин для каждого объекта
  return this.each(function() {
    // определяем объект
    var me = $(this);
    // определяем динамическую переменную колличества оставшихся для ввода символов
    var l = settings.maxChars;
    // определяем события на которые нужно реагировать
    me.bind('keydown keypress keyup',function(e) {
      // если строка больше maxChars урезаем её
      if(me.val().length>settings.maxChars) me.val(me.val().substr(0,settings.maxChars));
      // определяем колличество оставшихся для ввода сиволов
      l = settings.maxChars - me.val().length;
      // отображаем значение в информере
      me.next('div').html(l + ' ' + settings.leftChars);
    });
    // вставка информера после объекта
    me.after('<div class="maxlen">' + settings.maxChars + ' ' + settings.leftChars + '</div>');
  });
};



function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}
function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}