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

	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, setphoto=false, toid=null;

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

	imgs = d.getElementById('rotator').getElementsByTagName('div');
	setMasterHeight(imgs);
	
	css = d.createElement('link');
	css.setAttribute('href','http://www.vacationrentals411.com/slideshow/slideshow2.css');
	css.setAttribute('rel','stylesheet');
	css.setAttribute('type','text/css');
	d.getElementsByTagName('head')[0].appendChild(css);

	
	for(i=1;i<imgs.length;i++) imgs[i].xOpacity = 0;
	imgs[0].style.display = 'block';
	imgs[0].xOpacity = .99;

	toid = setTimeout(so_xfade,3000);
}

function so_xfade()
{
	
	cOpacity = imgs[current].xOpacity;
	if(setphoto===false){
		nIndex = imgs[current+1]?current+1:0;
	}else{
		nIndex = setphoto;
	}
	nOpacity = imgs[nIndex].xOpacity;

	if(setphoto===false){
		cOpacity-=.05;
		nOpacity+=.05;
	}else{
		cOpacity=0;
		nOpacity=.99;
	}
	

	imgs[nIndex].style.display = 'block';
	imgs[current].xOpacity = cOpacity;
	imgs[nIndex].xOpacity = nOpacity;
	
	
	setOpacity(imgs[current]);
	setOpacity(imgs[nIndex]);
	
	

	if(cOpacity<=0)
	{
		if(current!=nIndex){
			imgs[current].style.display = 'none';
			current = nIndex;
		}
		
		if(setphoto===false){
			toid = setTimeout(so_xfade,3000);
		}
		
		var obj = imgs[current].getElementsByTagName('img');
		var alt = obj[0].alt;
		var photoname = d.getElementById('photoname');
		photoname.innerHTML = alt;
	}
	else
	{
		toid = 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) + ')';
	}
}


//Nolan set height of box based on length of text on a per page basis
function setMasterHeight(imgs){
	var largestHeight = 0;
	for(i=0;i<imgs.length;i++){
		var obj = imgs[i];
		height = obj.offsetHeight;
		if(height>largestHeight){
			largestHeight = height;
		}
	}
	
	
	//set to the largest height
	var lbase = 280;
	var rbase = 40;
	
	if(largestHeight>lbase){
		d.getElementById('rotator').style.height=largestHeight+"px";
		rheight = (largestHeight-lbase)+rbase;
		d.getElementById('jsSetHeight').style.height=rheight+"px";
	}
}