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, duration = 4000;

function so_init() {
	if (!d.getElementById || !d.createElement) return;
	if (!d.getElementById("pagePhoto")) return;
	
	imgs = d.getElementById("pagePhoto").getElementsByTagName("img");
	for(i=1;i<imgs.length;i++) imgs[i].xOpacity = 0;
	
	if (imgs.length > 0)
	{
	    imgs[0].style.display = "block";
	    imgs[0].xOpacity = .99;
    	
	    setTimeout(so_xfade, duration);
	}
}

function so_xfade() {
	cOpacity = imgs[current].xOpacity;
	nIndex = imgs[current+1]?current+1:0;
	nOpacity = imgs[nIndex].xOpacity;
	
	cOpacity-=.05; 
	nOpacity+=.05;
	
	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;
		setTimeout(so_xfade, duration);
	} else {
		setTimeout(so_xfade,50);
	}
	
	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) + ")";
	}
}

function ShowSubMenu(menuitem, menuID)
{
    if (menuitem.className == 'bottom_menu')
    {
        menuitem.style.backgroundImage = 'url(../Images/bottommenuitemhover_bg.png)';
    }
}