/*

	* * *  Govinda's note: DON'T MESS WITH THIS SCRIPT UNLESS YOU REALLY KNOW WHAT YOU ARE DOING!!  * * * 


	http://www.dhtmlsite.com/imagegalleries.php :
		http://sonspring.com/journal/slideshow-alternative :

			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;

function so_init() {
	if(!d.getElementById || !d.createElement)return;
			//------ START Govinda: need to set our first indicator:
				document.getElementById("slideIndicator1").src = 'images/home/slideshow/slideToggleIndicators/slideONsquare_01.png';
			//------ END Govinda: need to set our first indicator:
	css = d.createElement('link');
	css.setAttribute('href','slideshow2.css');
	css.setAttribute('rel','stylesheet');
	css.setAttribute('type','text/css');
	d.getElementsByTagName('head')[0].appendChild(css);

	imgs = d.getElementById('carousel_rotator').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,3000);
}

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,3000); //Govinda note: orig = 3000 //<---how long to sit on each image
	} else {
		setTimeout(so_xfade,50); //Govinda note: orig = 50 //<--- how long to take to make the transition
		//alert('cOpacity='+cOpacity);
		if(cOpacity<=.75) {
				//------ START Govinda: need to update our indicator:
					oneBasedCurrent = current + 1;
					oneBasednIndex = nIndex + 1;
					document.getElementById("slideIndicator" + oneBasedCurrent).src = 'images/home/slideshow/slideToggleIndicators/slideOFFsquare_01.png';
					document.getElementById("slideIndicator" + oneBasednIndex).src = 'images/home/slideshow/slideToggleIndicators/slideONsquare_01.png';
				//------ END Govinda: need to update our indicator
			/* 
			 */
		}
	}

	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) + ')';
	}
}