function exlapse(divName)
{
	var divRef = document.getElementById(divName);
	
	if (divRef.style.display == 'none') {
		try {
			divRef.style.display='table-row';
		} catch(e) {
			divRef.style.display = 'block';
		}
	}
	else {
		divRef.style.display = 'none';
	}
}