////////////////////////////////////////////////////////////////////////////////////
///// for slider /////////////////////////////////////////////////////////////////

var timerlen = 5;
var slideAniLen = 250;

var timerID = new Array();
var startTime = new Array();
var obj = new Array();
var endHeight = new Array();
var moving = new Array();
var dir = new Array();

//functions by Anna start
function HideContent(d) {
	document.getElementById(d).style.display = "none";
}
function ShowContent(d, date) {
	document.getElementById(d).style.display = "block";
		////////////////////////////////////////////////////////////////////////
		xmlhttp=GetXmlHttpObjectEvents();
		if (xmlhttp==null)
		  {
		  alert ("Your browser does not support XMLHTTP!");
		  return;
		  }
		var url="calendar/showevent.php";
		url=url+"?date="+date;
		url=url+"&sid="+Math.random();
		xmlhttp.onreadystatechange=stateChangedEvents;
		xmlhttp.open("GET",url,true);
		xmlhttp.send(null);
		}
		function GetXmlHttpObjectEvents()
		{
		if (window.XMLHttpRequest)
		  {
		  // code for IE7+, Firefox, Chrome, Opera, Safari
		  return new XMLHttpRequest();
		  }
		if (window.ActiveXObject)
		  {
		  // code for IE6, IE5
		  return new ActiveXObject("Microsoft.XMLHTTP");
		  }
		return null;
		}
		function stateChangedEvents()
		{
		if (xmlhttp.readyState==4)
		  {
		  document.getElementById("events").innerHTML=xmlhttp.responseText;
		  }

		////////////////////////////////////////////////////////////////////////
}
//functions by Anna end

function slidedown(objname,date){
        if(moving[objname])
                return;
				
        if(document.getElementById(objname).style.display == "none"){
			// cannot slide up something that is already hidden

        moving[objname] = true;
        dir[objname] = "down";
        startslide(objname);
		}
		////////////////////////////////////////////////////////////////////////
		xmlhttp=GetXmlHttpObjectEvents();
		if (xmlhttp==null)
		  {
		  alert ("Your browser does not support XMLHTTP!");
		  return;
		  }
		var url="calendar/showevent.php";
		url=url+"?date="+date;
		url=url+"&sid="+Math.random();
		xmlhttp.onreadystatechange=stateChangedEvents;
		xmlhttp.open("GET",url,true);
		xmlhttp.send(null);
		}
		function GetXmlHttpObjectEvents()
		{
		if (window.XMLHttpRequest)
		  {
		  // code for IE7+, Firefox, Chrome, Opera, Safari
		  return new XMLHttpRequest();
		  }
		if (window.ActiveXObject)
		  {
		  // code for IE6, IE5
		  return new ActiveXObject("Microsoft.XMLHTTP");
		  }
		return null;
		}
		function stateChangedEvents()
		{
		if (xmlhttp.readyState==4)
		  {
		  document.getElementById("events").innerHTML=xmlhttp.responseText;
		  }

		////////////////////////////////////////////////////////////////////////
}

function slideup(objname){
        if(moving[objname])
                return;

        if(document.getElementById(objname).style.display == "none")
                return; // cannot slide up something that is already hidden

        moving[objname] = true;
        dir[objname] = "up";
        startslide(objname);
}

function startslide(objname){
        obj[objname] = document.getElementById(objname);

        endHeight[objname] = parseInt(obj[objname].style.height);
        startTime[objname] = (new Date()).getTime();

        if(dir[objname] == "down"){
                obj[objname].style.height = "1px";
        }

        obj[objname].style.display = "block";

        timerID[objname] = setInterval('slidetick(\'' + objname + '\');',timerlen);
}

function slidetick(objname){
        var elapsed = (new Date()).getTime() - startTime[objname];

        if (elapsed > slideAniLen)
                endSlide(objname)
        else {
                var d =Math.round(elapsed / slideAniLen * endHeight[objname]);
                if(dir[objname] == "up")
                        d = endHeight[objname] - d;

                obj[objname].style.height = d + "px";
        }

        return;
}

function endSlide(objname){
        clearInterval(timerID[objname]);

        if(dir[objname] == "up")
                obj[objname].style.display = "none";

        obj[objname].style.height = endHeight[objname] + "px";

        delete(moving[objname]);
        delete(timerID[objname]);
        delete(startTime[objname]);
        delete(endHeight[objname]);
        delete(obj[objname]);
        delete(dir[objname]);

        return;
}

////////////////////////////////////////////////////////////////////////////////////
///// for calendar /////////////////////////////////////////////////////////////////
function calInc()
{
month++;
//if (str.length==0)
//  {
//  document.getElementById("txtHint").innerHTML="";
//  return;
//  }
xmlhttp=GetXmlHttpObject();
if (xmlhttp==null)
  {
  alert ("Your browser does not support XMLHTTP!");
  return;
  }
var url="calendar/showcalendar.php";
url=url+"?q="+month;
url=url+"&sid="+Math.random();
xmlhttp.onreadystatechange=stateChanged;
xmlhttp.open("GET",url,true);
xmlhttp.send(null);
}
function calShow()
{
xmlhttp=GetXmlHttpObject();
if (xmlhttp==null)
  {
  alert ("Your browser does not support XMLHTTP!");
  return;
  }
var url="calendar/showcalendar.php";
url=url+"?q="+month;
url=url+"&sid="+Math.random();
xmlhttp.onreadystatechange=stateChanged;
xmlhttp.open("GET",url,true);
xmlhttp.send(null);
}
//////////////////////////////////////////////////////////////////////////

function calDec(){
month--;
//if (str.length==0)
//  {
//  document.getElementById("txtHint").innerHTML="";
//  return;
//  }
xmlhttp=GetXmlHttpObject();
if (xmlhttp==null)
  {
  alert ("Your browser does not support XMLHTTP!");
  return;
  }
var url="calendar/showcalendar.php";
url=url+"?q="+month;
url=url+"&sid="+Math.random();
xmlhttp.onreadystatechange=stateChanged;
xmlhttp.open("GET",url,true);
xmlhttp.send(null);
}