function show(object,items)
{
	obj = document.getElementById(object);
	
	if (obj)
	{
		
		if (obj.style.display == '') obj.style.display = 'none';
		current = (obj.style.display == 'none') ? 'block' : 'none';
		obj.style.display = current;
		var otherdiv;
		
		for (var i=1; i<items; i++)
		{
			if (document.getElementById)
				otherdiv=document.getElementById("sc" + i);
			else
				otherdiv=document.all("sc"+i);
			
			if (otherdiv!=obj)
			{
				otherdiv.aselected="false";
				hide(otherdiv);
			}
		}
		if (obj.style.display == 'block')
		{
		img = obj.id + '_img';
		document.images[img].src = 'images/minus.gif';
		}
		
		if (obj.style.display == 'none')
		{
		img = obj.id + '_img';
		document.images[img].src = 'images/plus.gif';
		}
	}
		//alert(obj.style.display);
}

function hide(div)
{    
	div.style.display = 'none';
	img = div.id + '_img';
	document.images[img].src  = 'images/plus.gif';
}

function showall()
{
	
	for (var i=1; i<17; i++)
	{
		div=document.getElementById("sc" + i);
		div.style.display = 'block'
		
		img = ('sc' + i) + '_img';
		document.images[img].src = 'images/minus.gif';
		
	}
	
}


function hideall()
{
	
	for (var i=1; i<17; i++)
	{
		div=document.getElementById("sc" + i);
		div.style.display = 'none'
		
		img = ('sc' + i) + '_img';
		document.images[img].src = 'images/plus.gif';
		
	}
	
}