var lgycurrentpos = 0;		
		
function lgyPreviousAd() { 
	var AdDiv = document.getElementById("petAdPhoto");
	if (AdDiv) { 
		lgycurrentpos--; 
		if (lgycurrentpos < 0) { 
			lgycurrentpos = lgysize - 1; 
		}; 
		purgeAd();
	} 
}

function lgyNextAd() { 
	var AdDiv = document.getElementById("petAdPhoto");
	if (AdDiv) { 
		lgycurrentpos++; 
		if (lgycurrentpos >= lgysize) { 
			lgycurrentpos = 0; 
		}; 
		purgeAd(); 
	} 
}

function rotateAd() {         
    var AdDiv = document.getElementById("petAdPhoto");
	if (AdDiv) { 
		lgycurrentpos++; 
		if (lgycurrentpos >= lgysize) { 
			lgycurrentpos = 0; 
		}; 
		replaceAd();
	} 
    setTimeout('rotateAd()', 10000); 
}

function replaceAd() {
	var adText = (lgyarrAd[lgycurrentpos]).split("|");
	var obj = document.getElementById("petAdPhotoLoader");
	if (obj.firstChild == null || obj.firstChild.childNodes.length==0)
	{
	   purgeAd();		   
	   obj.innerHTML = adText[0]; 
	}
	else
	{
       obj.innerHTML = adText[0]; 
	   obj.firstChild.firstChild.onload = purgeAd;	
    }	
}

function purgeAd()
{
    var adText = (lgyarrAd[lgycurrentpos]).split("|");
	var obj = document.getElementById("petAdPhoto");
	obj.innerHTML = adText[0]; 	
	var obj = document.getElementById("petAdCaption");
	obj.innerHTML = adText[1]; 
}