function RefreshGal(first,last, aid)
{	
	var j=1;	
	do
	{		
		document.getElementById("i"+j).className = "noselected";		
		j++;
	}
	while(document.getElementById("i"+j)!=null);
	
	document.getElementById(aid).className = "selected";
	
	var i = 1;
	do
	{		
		if(i >= first && i <=last)
			document.getElementById(i).style.display = "block";
		else
			document.getElementById(i).style.display = "none";
		i++;
	}
	while(document.getElementById(i)!=null);
}