/*****

Image Cross Fade Redux
Version 1.0
Last revision: 02.15.2006
steve@slayeroffice.com

Please leave this notice intact. 

Rewrite of old code found here: http://slayeroffice.com/code/imageCrossFade/index.html


*****/


window.addEventListener?window.addEventListener("load",so_init,false):window.attachEvent("onload",so_init);

var d=document, imgs = new Array(), zInterval = null, current=0, pause=false;
var imgx, titlex, rychle = false;
function so_init() {
  // d=document, imgs = new Array(), zInterval = null, current=0, pause=false;
//rychle = false;

    //alert('test');
    //alert(document.getElementById("detail").style.height);
    //alert (document.getElementById("detail").style.height);
    if (document.getElementById("detail") ==null){
        //alert('nic');
        return}
    //alert(document.getElementById("detail").style.height);
     //alert(document.getElementById("detail").id);
    //alert('test2');
	if(!document.getElementById || !document.createElement)return;
        imgs = new Array(), zInterval = null, current=0, pause=false;
	imgs = document.getElementById("detail").getElementsByTagName("img");
        //as = d.getElementById("pravyhlavicka").getElementsByTagName("a");
	
        for(i=1;i<imgs.length;i++) imgs[i].xOpacity = 0;
	imgs[0].style.display = "block";
        //as[0].style.display = "block";
	imgs[0].xOpacity = .99;
	
	pause=true;
        //setTimeout(so_xfade,1000);
         velikost=imgs[0].height;
        
            velikost=velikost+70;
           // alert(velikost);
            document.getElementById("detail").style.height=velikost+"px";
            //alert(document.getElementById("detail").style.height);
}



function zmena(img,title)
{
   // alert('bleb');
  if (!pause)
  {
      //alert('kuk');
      imgx = img;
      titlex = title;
      rychle = true;
      //alert('rychle');
      return;
   }
   /*
    if (!pause){            
        //imgs[current].style.display = "none";
        imgs[0].style.display = "none";
        imgs[1].style.display = "none";
	pause=true;
        setOpacity(imgs[current]);
        //alert(imgs[current].xOpacity);
    }
  */
       i = imgs[current+1]?current+1:0;
       imgs[i].src=img;
       imgs[i].title=title;
	
        setTimeout(so_xfade,1);
    
}

function so_xfade() {
    pause=false;
        //alert(nIndex+"  "+current);
	cOpacity = imgs[current].xOpacity;
	nIndex = imgs[current+1]?current+1:0;
       
	nOpacity = imgs[nIndex].xOpacity;
	cOpacity-=.05;
        nOpacity+=.05;
        
	

	//as[nIndex].style.display = "block";
	imgs[nIndex].style.display = "block";
	imgs[current].xOpacity = cOpacity;
	imgs[nIndex].xOpacity = nOpacity;
	
	setOpacity(imgs[current]); 
	setOpacity(imgs[nIndex]);
	
	if(cOpacity<=0)
        {
            imgs[current].style.display = "none";
            current = nIndex;
            velikost=imgs[nIndex].height;
            //alert("0: "+document.getElementById("detail").style.height);
            //alert("1:"+velikost);
            //document.getElementById("detail").style.height=velikost;
            velikost=velikost+70;
            //alert(imgs[nIndex].height);
            //alert("2:"+document.getElementById("detail").height);
            //alert("2: "+document.getElementById("detail").style.height);
            //setTimeout(so_xfade,1000);
            //document.getElementById('prvni').src=document.getElementById('druhy').src;
            
            pause=true;
           // alert (document.getElementById("detail").style.height);
            document.getElementById("detail").style.height=velikost+"px";
            //document.getElementById("detail").style.height=velikost+"px";
            //alert (document.getElementById("detail").style.height);
            if (rychle){
                rychle=false;
                zmena(imgx, titlex); }
	}
        else
        {
		setTimeout(so_xfade,1);
	}
	
	
	
}

function setOpacity(obj) {
		if(obj.xOpacity>.99) {
			obj.xOpacity = .99;
			return;
		}
		obj.style.opacity = obj.xOpacity;
		obj.style.MozOpacity = obj.xOpacity;
		obj.style.filter = "alpha(opacity=" + (obj.xOpacity*100) + ")";
	}