// (c) mixpics.ru
// find object (what, where)
function findObj(n, d) {
  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=findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

// swaps image of <img>
function swapImage(src, image) {
  if ((x=findObj(src))!=null) {
  x.src=image;
  }
}

// set cookie (1 day = 24*60*60*1000 ms)
function setCookie(name, value, ms) {
  function getExp( d ) {
    var exp = new Date();
    exp.setTime (exp.getTime() + d);
    return '; expires=' + exp.toGMTString();
  }
  
  if (value.length == 0)
    document.cookie = name + "=" + getExp(-1000) + ";path=/";
  else
    document.cookie = name + "=" + value + getExp(ms) + ";path=/";
}

// get cookie
function getCookie(name) {
  var dc = document.cookie;
  var prefix = name + '=';
  var begin = dc.indexOf('; ' + prefix);
  if (begin == -1) {
    begin = dc.indexOf(prefix);
    if (begin != 0) {
      return null;
    }
  } else {
    begin += 2;
  }
  var end = dc.indexOf(';', begin);
  if (end == -1) {
    end = dc.length;
  }
  return dc.substring(begin + prefix.length, end);
}

// set (-) count
function wpps_cnt() {
  var itemsCount=0;
  var wppsList = getCookie( 'wpps' );
  if( wppsList ) {
    for ( i=0; i<wppsList.length;i++ ) {
      if(wppsList.charAt(i) == '|') itemsCount++;
    }    
    wppsList = '|' + wppsList;
  } else {
    wppsList = '';
  }
}

// adds message
function wpps_add(i) {
  var list=getCookie('wpps');
  if (list==null) { list = '';}

  var found=0;
  if (list) {
    while (list.length>0) {
      entry=list.substr(0, list.indexOf('|'));
      if (entry==i) found++;
      list=list.replace(entry+'|', '');
    }
  }

  if (found==0) {
    list=getCookie('wpps');
    if (list==null) { list = '';}
    list=i+'|'+list;
    setCookie('wpps', list, 365*24*60*60*1000);
  }
  list=getCookie('wpps');
  if (list==null) { list = '';}
  wpps_cnt();
}


// clears wpps's list
function wpps_clear() {
  setCookie('wpps', '', 365*24*60*60*1000);
  wpps_cnt();
}

// create main AJAX request objekct
function createRequestObject()
{
  if (window.XMLHttpRequest) {
    try {
      return new XMLHttpRequest();
    } catch (e){}
  } else if (window.ActiveXObject) {
    try {
      return new ActiveXObject('Msxml2.XMLHTTP');
    } catch (e){}
    try {
    return new ActiveXObject('Microsoft.XMLHTTP');
    } catch (e){}
  }
  return null;
}

// ajax request (query=full url), return "error" or result HTML
function ajax_request(query) {
  var r="";
  req=createRequestObject();
  req.onreadystatechange=function(){
    if(req.readyState==4) {
      if(req.status==200) {
        r=req.responseText;
      } else {
        r="error";
      }
    }
  }
  req.open("GET", query, true);
  req.setRequestHeader('Accept-Language', 'en');
  req.setRequestHeader('Accept-Charset', 'windows-1251');
  req.send(null);
  return r;
}

// ajax request (query=full url), return "error" or result HTML
function ajax_request2(query) {
var frame = document.createElement('iframe');
  frame.style.width='0px';
  frame.style.height='0px';
  frame.style.visibility="hidden";
  frame.src=query;
  document.body.appendChild(frame);
}