var http_request = false;
   function makePOSTRequest(url, parameters) {
      http_request = false;
      if (window.XMLHttpRequest) { // Mozilla, Safari,...
         http_request = new XMLHttpRequest();
         if (http_request.overrideMimeType) {
            // set type accordingly to anticipated content type
            //http_request.overrideMimeType('text/xml');
            http_request.overrideMimeType('text/html');
         }
      } else if (window.ActiveXObject) { // IE
         try {
            http_request = new ActiveXObject("Msxml2.XMLHTTP");
         } catch (e) {
            try {
               http_request = new ActiveXObject("Microsoft.XMLHTTP");
            } catch (e) {}
         }
      }
      if (!http_request) {
         alert('Не може да се създаде XMLHTTP обект');
         return false;
      }
      
      http_request.onreadystatechange = alertContents;
      http_request.open('POST', url, true);
      http_request.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
      http_request.setRequestHeader("Content-length", parameters.length);
      http_request.setRequestHeader("Connection", "close");
      http_request.send(parameters);
   }

   function alertContents() {
      if (http_request.readyState == 4) {
         if (http_request.status == 200) {
            //alert(http_request.responseText);
            result = http_request.responseText;
            document.getElementById('weatherOutput').innerHTML = result;
            document.getElementById('city').value = '';
            $("#scroller").simplyScroll({
                speed: 5
            });
            $("#fullmap").fancybox({
                'width': '100%',
                'height': '100%',
                'autoScale': true,
                'transitionIn': 'none',
                'transitionOut': 'none',
                'type': 'iframe'
            });
         } else {
            alert("Възникна проблем със заявката.\nМоля, опитайте по-късно!");
         }
      }
   }
   
   function get(obj) {
      var poststr = "city=" + encodeURI( document.getElementById("city").value );
      makePOSTRequest('src/weather/getweather.php', poststr);
   }


function Get_Cookie(name) {

var start = document.cookie.indexOf( name + "=" );
var len = start + name.length + 1;
if ( ( !start ) &&
( name != document.cookie.substring( 0, name.length ) ) )
{
return null;
}
if ( start == -1 ) return null;
var end = document.cookie.indexOf( ";", len );
if ( end == -1 ) end = document.cookie.length;
return unescape( document.cookie.substring( len, end ) );
}

function autoweather() {
    if (Get_Cookie('moyatautoweather')) {
	clearInterval(autoupdate);
	document.getElementById('autoweather').value = ' ';
	titleweather = "Автоматично обновяване: Изключено";
	document.cookie = "moyatautoweather=;expires=Thu, 01-Jan-1970 00:00:01 GMT;path=/;domain=.moyat.net";
	document.cookie = "moyatautoweatherint=;expires=Thu, 01-Jan-1970 00:00:01 GMT;path=/;domain=.moyat.net";
    } else {
	var intervalbox = prompt("Интервал на обновяване в минути, но не по-малко от 15.\nНевалидна стойност се равнява на 30 минути.", "30");
	if (intervalbox != '' && intervalbox != null) {
	    intervalweather = parseInt(intervalbox);
	    if (isNaN(intervalweather) || intervalweather < 15) {
		intervalweather = 30;
	    }
	    document.getElementById('autoweather').value = '*';
	    titleweather = "Автоматично обновяване: Включено, през "+intervalweather+" минути";
	    document.cookie = "moyatautoweather=1;expires=Thu, 01-Jan-2043 00:00:01 GMT;path=/;domain=.moyat.net";
	    document.cookie = "moyatautoweatherint="+intervalweather+";expires=Thu, 01-Jan-2043 00:00:01 GMT;path=/;domain=.moyat.net";
	    get();
	    autoupdate = setInterval("get()", intervalweather*60*1000);
	}
    }
}