function viewBook(ID)
{
	window.open('display.php?ID=' + ID,'bookview','width=800,height=600');
}

function toggle(id)
{
	ul = "ul_" + id;
	img = "img_" + id;
	ulElement = document.getElementById(ul);
	imgElement = document.getElementById(img);
	if (ulElement)
	{
		if (ulElement.className == 'closed')
		{
			ulElement.className = "open";
			imgElement.src = "images/open.gif";
		}
		else
		{
			ulElement.className = "closed";
			imgElement.src = "images/closed.gif";
		}
	}
}

function roll(ID,img)
{
	
	ID.src = "images/" + img;
}