window.onload = doLoad;

function doLoad()
{
	
}

function exco(a)	//expand collapse
{
	var sp = a.nextSibling;
	while(sp != null) 
	{
		if(sp.nodeName.toLowerCase() == 'span') break;
		sp = sp.nextSibling;
	}
	
	if(sp)
	{
		if(sp.style.display == 'block')
		{
			sp.style.display = 'none';
			sp.parentNode.style.backgroundImage = 'url(images/collapse.gif)';
		}
		else
		{
			sp.style.display = 'block';
			sp.parentNode.style.backgroundImage = 'url(images/expand.gif)';
		}
	}
}