// dir = prev, next

curImage=1;

var data=new Array("",
   "<img src='data/1.jpg'/>", 
	 "<img src='data/2.jpg'/>",
	 "<img src='data/3.jpg'/>",
	 "<img src='data/4.jpg'/>",
	 "<img src='data/5.jpg'/>",
	 "<img src='data/6.jpg'/>",
	 "<img src='data/7.jpg'/>",
	 "<img src='data/8.jpg'/>",
	 "<img src='data/9.jpg'/>",
	 "<img src='data/10.jpg'/>",
	 "<img src='data/11.jpg'/>",
	 "<img src='data/12.jpg'/>",
	 "<img src='data/13.jpg'/>",
	 "<img src='data/14.jpg'/>",
	 "<img src='data/15.jpg'/>",
	 "<img src='data/16.jpg'/>",
	 "<img src='data/17.jpg'/>",
	 "<img src='data/18.jpg'/>",
	 "<img src='data/19.jpg'/>",
	 "<img src='data/20.jpg'/>",
	 "<img src='data/21.jpg'/>",
	 "<img src='data/22.jpg'/>",
	 "<img src='data/23.jpg'/>",
	 "<img src='data/24.jpg'/>",
	 "<img src='data/25.jpg'/>",
	 "<img src='data/26.jpg'/>",
	 "<img src='data/27.jpg'/>",
	 "<img src='data/28.jpg'/>",
	 "<img src='data/29.jpg'/>");
	 
var numImages=data.length-1;	 

function rewindImg(dir)
{
   if(dir=='prev')
	 {
	 	   if(curImage<=1) 
			 {
			 		curImage=numImages;
				}
  		 else
  		 {
  		    curImage--;
  		 }
	 }
	 
	 if(dir=='next')
	{
		if(curImage>=numImages)
		{
		   curImage=1;
		}
		else
		{
		   curImage++;
		}
	}
	
	putImg(curImage);	
}

function putImg(index)
{
	curImage=index;
	
	//alert(data[index]);

	 document.getElementById('picInfo').innerHTML=data[index];
	 document.getElementById('downloadLink').innerHTML='<a href="data/'+index+'_big.jpg">Изтеглете</a>';
	 
	 document.getElementById('video').style.visibility='hidden';
	 document.getElementById('picPad').style.display='block';
	 
	 centerElt('picDiv',640,500);    
}

curDiv=1;
numDivs=6;


// dir = prev, next
function showGallery(dir)
{  
	if(dir=='prev')
	{
	   if(curDiv<=1) curDiv=numDivs;
		 else
		 {
		    curDiv--;
		 }
	}
	
	if(dir=='next')
	{
		if(curDiv>=numDivs)
		{
		   curDiv=1;
		}
		else
		{
		   curDiv++;
		}
	}
	
	for(i=1;i<=numDivs;i++)
	{
	   document.getElementById('g'+i).style.display='none';
	}
	
	document.getElementById('g'+curDiv).style.display='block';	
}

function centerElt(eid,w,h)
{  
    elt=document.getElementById(eid);   			
    var centerY= Math.floor(Math.round(screen.height/2));
    var centerX= Math.floor(Math.round(screen.width/2));
	
    elt.style.top=(centerY-Math.floor(Math.round(h/2))-100)+"px";
    elt.style.left=(centerX-Math.floor(Math.round(w/2)))+"px";
	
   elt.style.display='block';	
}