function expand(showNode, hideNode, textNode, killLink){
	document.getElementById( textNode ).style.display = (document.getElementById( textNode ).style.display == 'block')?'none':'block';
	document.getElementById( showNode ).style.display = (killLink == true)?'none':'block';
	document.getElementById( hideNode ).style.display = (killLink == true)?'block':'none' ;
}