var fadeInterval;
var mozOpac = 0;
var imgNum = 1;
var maxImgNum = 2;

function ShowNextImage()
{        
    clearInterval(fadeInterval);
    fadeInterval=setInterval('FadeImageIn(\"imgHome\");', 20);
    setTimeout('PrepareNextImage();', 10000);
}

function SetPageBackground()
{
    var imgurl;
    var csdiv = document.getElementById('contentsingle');
    if(!csdiv)
	return;
	var setimg = document.getElementById('pageimageurl');
	if(!setimg)
	{
		var num = 1 + Math.floor(Math.random()*maxImgNum); 
		imgurl = "/wp-content/themes/TusubiraOne/images/side" + num + ".jpg";
		csdiv.style.background = "#fff url(" + imgurl + ") top right no-repeat";
		return;
	}
	if(document.all)
	{	
		csdiv.style.background = "#fff url(" + setimg.innerText + ") top right no-repeat";
	} 
	else
	{
		csdiv.style.background = "#fff url(" + setimg.textContent + ") top right no-repeat";
	}

}

function PrepareNextImage()
{
    imgNum += 1;
    if(imgNum > maxImgNum)
        imgNum = 1;
    clearInterval(fadeInterval);
    fadeInterval=setInterval('FadeImageOut(\"imgHome\");', 20);
    setTimeout('SetImage(\"imgHome\");', 1500);
}

function SetImage(image)
{
    var img = document.getElementById(image);
    img.src = "/wp-content/themes/TusubiraOne/images/home" + imgNum + ".jpg";
    if(imgNum == 2)
        img.onclick = UREventPage;
    else
        img.onclick = null;
    setTimeout('ShowNextImage();', 500);
}

function UREventPage()
{
    window.location.href = "http://www.wfp.org/english/?ModuleID=137&Key=2406";
}

function FadeImageIn(image)
{
    var img = document.getElementById(image);
    
    if (img.filters)
    {
        var opac = img.filters.alpha.opacity;
        if(opac >= 90)
        {
            img.filters.alpha.opacity = 100;
            clearInterval(fadeInterval);
            return;
        }
        else
        {
            img.filters.alpha.opacity = (opac + 3);
        }	    
    }
    else
    {
        mozOpac += 3;
        if(document.getElementById(image).style.MozOpacity >= 0.9)
        {
            document.getElementById(image).style.MozOpacity = 0.99;
            clearInterval(fadeInterval);
            return;
        }
        else
        {
            document.getElementById(image).style.MozOpacity = mozOpac/100;
        }
    }
}

function FadeImageOut(image)
{
   var img = document.getElementById(image);
   if (img.filters)
   {
       var opac = img.filters.alpha.opacity;
       if(opac <= 0)
       {
           clearInterval(fadeInterval);
           img.filters.alpha.opacity = 0;
           return;
       }
       else
       {
           img.filters.alpha.opacity = (opac - 3);
       }
   }
   else
   {
        mozOpac -= 3;
        if(document.getElementById(image).style.MozOpacity <= 0.1)
        {
            document.getElementById(image).style.MozOpacity = 0;
            clearInterval(fadeInterval);
            return;
        }
        else
        {
            document.getElementById(image).style.MozOpacity = mozOpac/100;
        }
    }      
}