// JavaScript Document - Collapsible text

plusImg = new Image(); plusImg.src   = 'http://www.laicc.net/subsite/South13/2008SWSC/images/plus.png';
minusImg = new Image(); minusImg.src = 'http://www.laicc.net/subsite/South13/2008SWSC/images/minus.png';
function hideLevel( _levelId, _imgId ) 
{
	var thisLevel = document.getElementById( _levelId );
	var thisImg = document.getElementById( _imgId );
	thisLevel.style.display = "none";
	thisImg.src = plusImg.src;
}
function showLevel( _levelId, _imgId ) 
{
	var thisLevel = document.getElementById( _levelId );
	var thisImg = document.getElementById( _imgId );
	if ( thisLevel.style.display == "none") {
		thisLevel.style.display = "inline";
		thisImg.src = minusImg.src;
	}
	else {
		hideLevel( _levelId, _imgId);
	}
}