//fade images



function so_init() {
	if(!d.getElementById || !d.createElement)return;

	//css = d.createElement("link");
	//css.setAttribute("href","xfade2.css");
	//css.setAttribute("rel","stylesheet");
	//css.setAttribute("type","text/css");
	//d.getElementsByTagName("head")[0].appendChild(css);

	imgs = d.getElementById("image_container").getElementsByTagName("img");
	for(i=1;i<imgs.length;i++) imgs[i].xOpacity = 0;
	imgs[0].style.display = "block";
	imgs[0].xOpacity = .99;
	setTimeout(so_xfade,6000);
}
/*    
function swapLeftButtons(currentGroup) {
 	myGroup = currentGroup.split('_', 2);
 	button = myGroup[0];
    var buttons = ["playground","waterPlayground","sportsEquipment", "benches", "shelters"]; 

	for( var b in buttons ) {   
		//alert(buttons[b]);
	   if(button == buttons[b]){
			//d.getElementById(buttons[b]).style.backgroundPosition = "0 -54px";
			d.getElementById(buttons[b]).className=buttons[b]+'Active';
			
	   } else {
			//d.getElementById(buttons[b]).style.backgroundPosition = "0 0";
			d.getElementById(buttons[b]).className=buttons[b]; 
	   }  
	}

} 
*/

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";  
	   // swapLeftButtons(imgs[current].id);
		
		current = nIndex;
		setTimeout(so_xfade,6000);
	} else {
		setTimeout(so_xfade,5);
	}

	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) + ")";
	}

}