var main_but_src=					"/i/ni/";	//-- fodleri sadazaa motavsebuli but.gif da but-sel.gif
var but_src=					"/data/imgs4firstpage/";	//-- fodleri sadazaa motavsebuli but.gif da but-sel.gif
var mainimg_src=			"/data/imgs4firstpage/";	//-- folderi sadazaa motavsebuli es suratebi, romelsaz saxelebi akvs 1.jpg, 2.jpg ...
var schoolimg_src=			"/data/designs/design"+design+"/mainimgs/";	//-- folderi sadazaa motavsebuli skolis suratebi, romelsaz saxelebi akvs 1.jpg, 2.jpg ...
var currentimage=			1; 										//-- romeli suratidan vizkebt
var TimeToFade = 300;
//-----------------------------------------------
function gaige_monishnuli_radio_button_value (oo) {
	for (var i=0; i < oo.length; i++){
   if (oo[i].checked){ return oo[i].value;}
  }
	return 0;
}
//------------------------------------------------
function fadeout(mainimg,aa) {
	document.getElementById(mainimg).style.background="url('"+aa+"')";
	fade(mainimg);
}
//------------------------------------------------
function change_image_on_first_page(n) {
	//alert(imgname);
	var aa=mainimg_src+imgmas[n];
	for (i=1; i<=mainimg_sul ; i++) {
		document.getElementById('but'+i).src=main_but_src+'but.gif';
	}
	document.getElementById('but'+n).src=main_but_src+'but-sel.gif';
	fade('mainimg');
	setTimeout('fadeout(\'mainimg\',\''+aa+'\')', TimeToFade*1.2);
	
	//document.getElementById('mainimg').style.background="url('"+aa+"')";
	currentimage=n;
}
//------------------------------------------------
function change_image_on_school_page(n) {
	var aa=schoolimg_src+imgmas[n];
	for (i=1; i<=mainimg_sul ; i++) {
		document.getElementById('but'+i).src=main_but_src+'but.gif';
	}
	document.getElementById('but'+n).src=main_but_src+'but-sel.gif';
	fade('mainimg');
	setTimeout('fadeout(\'mainimg\',\''+aa+'\')', TimeToFade*1.2);
	//document.getElementById('mainimg').style.background="url('"+aa+"')";
	currentimage=n;
}
//------------------------------------------------
function next_mainimg() {
		currentimage++;
		if (currentimage>mainimg_sul) {currentimage=1;}
		change_image_on_first_page(currentimage);
}
//------------------------------------------------
function next_schoolimg() {
		currentimage++;
		if (currentimage>mainimg_sul) {currentimage=1;}
		change_image_on_school_page(currentimage);
}
//------------------------------------------------
//------------------------------------------------

//-------------------------------------------
function fade(eid)
{
  var element = document.getElementById(eid);
  if(element == null)
    return;
   
  if(element.FadeState == null)
  {
    if(element.style.opacity == null
        || element.style.opacity == ''
        || element.style.opacity == '1')
    {
      element.FadeState = 2;
    }
    else
    {
      element.FadeState = -2;
    }
  }
   
  if(element.FadeState == 1 || element.FadeState == -1)
  {
    element.FadeState = element.FadeState == 1 ? -1 : 1;
    element.FadeTimeLeft = TimeToFade - element.FadeTimeLeft;
  }
  else
  {
    element.FadeState = element.FadeState == 2 ? -1 : 1;
    element.FadeTimeLeft = TimeToFade;
    setTimeout("animateFade(" + new Date().getTime() + ",'" + eid + "')", 33);
    
  }  
}
//-------------------------------------------
function animateFade(lastTick, eid)
{  
  var curTick = new Date().getTime();
  var elapsedTicks = curTick - lastTick;
 
  var element = document.getElementById(eid);
 
  if(element.FadeTimeLeft <= elapsedTicks)
  {
    element.style.opacity = element.FadeState == 1 ? '1' : '0';
    element.style.filter = 'alpha(opacity = '
        + (element.FadeState == 1 ? '100' : '0') + ')';
    element.FadeState = element.FadeState == 1 ? 2 : -2;
    return;
  }
 
  element.FadeTimeLeft -= elapsedTicks;
  var newOpVal = element.FadeTimeLeft/TimeToFade;
  if(element.FadeState == 1)
    newOpVal = 1 - newOpVal;

  element.style.opacity = newOpVal;
  element.style.filter = 'alpha(opacity = ' + (newOpVal*100) + ')';
 
  setTimeout("animateFade(" + curTick + ",'" + eid + "')", 33);
}
//-------------------------------------------
//------------------------------------------------
//------------------------------------------------
//------------------------------------------------
function stateChanged_calendar() {
	if (xmlHttp.readyState==4){ 	
			document.getElementById("calendar_div").innerHTML=xmlHttp.responseText;;
	}
}
//------------------------------------------------
function change_calendar(formobj,lid) {
		
		var params="?new=yes&calendar=show&l="+lid;
		params+='&year='+formobj.elements["year"][formobj.elements["year"].options.selectedIndex].value;
		params+='&month='+formobj.elements["month"][formobj.elements["month"].options.selectedIndex].value;
		params+="&sid="+Math.random();

		document.getElementById("calendar_div").innerHTML='<div style="text-align:center; padding-top:30px;"><img src="/i/loading.gif"></div>';
		
		xmlHttp=GetXmlHttpObject();
		if (xmlHttp==null) {			alert ("Your browser does not support AJAX!");			return;	} 
		xmlHttp.onreadystatechange=stateChanged_calendar;		
		xmlHttp.open("GET",""+params,true);
		xmlHttp.send (null);
		//alert(params);
		return false;

}
//------------------------------------------------
//------------------------------------------------
function GetXmlHttpObject(){
	var xmlHttp=null;
	try	{
  	// Firefox, Opera 8.0+, Safari
  	xmlHttp=new XMLHttpRequest();
  }
	catch (e)  {
  	// Internet Explorer
  	try {
    	xmlHttp=new ActiveXObject("Msxml2.XMLHTTP");
    }
  	catch (E){
    	try {
      	xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");
      }
    	catch (e) {
      	alert("Your browser does not support AJAX!");
      	return false;
    	}
  	}
  }
	return xmlHttp;
}	
//------------------------------------------------
//------------------------------------------------
//------------------------------------------------
//------------------------------------------------