function openPopUp(URL,winName,widthVal,heightVal) {
	newWin = window.open(URL,winName,'toolbar=no,location=no,status=no,menubar=no,scrollbars=no,resizable=yes,width=' + widthVal + ',height=' +  heightVal + ',top=100,left=100');
}

hideTheHidden = function()
{
	hiddenList = document.getElementsByClassName('hidden');
	for(i = 0; i < hiddenList.length; i++)
	{
		hiddenList[i].style.display = 'none';
		hiddenList[i].parentNode.className = '';
	}
}

function expand(toExpand)
{
	if(toExpandElem = $(toExpand))
	{
		shouldExpand = (toExpandElem.style.display == 'none');

		hideTheHidden();

		if(shouldExpand)
		{
			toExpandElem.style.display = 'block';
			toExpandElem.parentNode.className = 'selected';
		}
	}
}

window.onload = hideTheHidden;