var maximg=25;

function toggleVisible(thumb)
{
	var array = document.getElementsByTagName("divs");
	if(array)
	{
		if(array[0])
		{
			for(var i=0;i<array.length;i++)
			{
				array[0].style.display="none";	
			}	
		}	
	}
	var id=thumb.id.substr(2,thumb.id.length);
	document.getElementById("div"+id).style.display="inline";
}

function showNext(arrow)
{
	var curr = parseInt(arrow.id.substr(2,arrow.id.length));
	var next=curr+1;
	if(next>maximg)
		next=1;
	document.getElementById("div"+curr).style.display="none";
	document.getElementById("div"+next).style.display="inline";
}

function showPrev(arrow)
{
	var curr = parseInt(arrow.id.substr(2,arrow.id.length));
	var prev=curr-1;
	if(prev<=0)
		prev=maximg;
	document.getElementById("div"+curr).style.display="none";
	document.getElementById("div"+prev).style.display="inline";
}