function isGalleryRendered()
{
	if(document.getElementById('photogallery1')!=null)
	{
		if(document.URL.indexOf('imageindex')!=-1)
		{
			modifyElement();
		}
	}
	else
	{
		var t=setTimeout("isGalleryRendered()",100); 
	}
}

function modifyElement()
{
	var pg = document.getElementById('photogallery1').firstChild.lastChild;
	var td_obj = pg.getElementsByTagName("td");
	var nextbutton='';
	var prevbutton='';
	var pagenumber='';
	for (var i = 0; i < td_obj.length; i++) { 
		    if(td_obj[i].className=='imagearrow')
			{
			if(prevbutton=='')
				{
				prevbutton=td_obj[i];
				}
			else
				{
				nextbutton=td_obj[i];
				}
			}
		if(td_obj[i].className=='pagenumber')
		{
			pagenumber=td_obj[i];
		}
    }
	var old= pagenumber.childNodes[0];
	pagenumber.replaceChild(pagenumber.childNodes[4],pagenumber.childNodes[0]);
	pagenumber.appendChild(old);
	var max='';
	if(IsNumeric(pagenumber.innerText.substring(1,2)))
	{
		max=pagenumber.innerText.substring(0,2);
	}
	else	
	{
		max=pagenumber.innerText.substring(0,1);
	}	
	if(getImageIndexFromUrl()==1)
	{
		prevbutton.removeChild(prevbutton.childNodes[0]);
		prevbutton.appendChild(nextbutton.firstChild);
		prevbutton.firstChild.firstChild.src='http://estc.msn.com/br/intl/ent/css/1/Decoration//PhotoGalleryLeftArrow.gif'
	}
	else if(getImageIndexFromUrl()==max)
	{
		nextbutton.removeChild(nextbutton.childNodes[0]);
		nextbutton.appendChild(prevbutton.firstChild);
		nextbutton.firstChild.firstChild.src='http://estc.msn.com/br/intl/ent/css/1/Decoration//PhotoGalleryRightArrow.gif'
	}
	else
	{
		var mod = prevbutton.firstChild.href;
		prevbutton.firstChild.href=nextbutton.firstChild.href;
		nextbutton.firstChild.href=mod;	
	}
	pagenumber.style.padding='0 3 3 0';
	

}


function IsNumeric(sText)
{
   var ValidChars = "0123456789";
   var IsNumber=true;
   if (ValidChars.indexOf(sText) == -1) 
         {
         IsNumber = false;
         }
   return IsNumber;
   
}

function getImageIndexFromUrl()
{
var retval=-1;
var url = document.URL;
if(url.indexOf('imageindex'))
{
	retval=url.substring(url.indexOf('imageindex')+11);	
}
return retval;
}

isGalleryRendered();