var plusImg = new Image();
plusImg.src = "images/plus.gif";
var minusImg = new Image();
minusImg.src = "images/minus.gif";


function hideLevel( _levelId, _imgId ) {
	var thisLevel = document.getElementById( _levelId );
	var thisImg = document.getElementById( _imgId );
	thisLevel.style.display = "none";
	thisImg.setAttribute("src","images/plus.gif");
	return nd();
	}

	

function showLevel( _levelId, _imgId ) {
	var thisLevel = document.getElementById( _levelId );
	var thisImg = document.getElementById( _imgId );
	if (thisLevel.style.display == "none") {
		thisLevel.style.display = "block";
		thisImg.setAttribute("src","images/minus.gif");
		document.getElementById("resident_group_photo").style.top = "0px";
		document.getElementById("resident_group_photo").style.left = "0px";
		nd();
		//minusObj.setAttribute("src", "/images/minus.gif");    
		//return;
		//thisImg.src = minusImg.src;
		}
	else {
		document.getElementById(_imgId).setAttribute("src","images/plus.gif");
		hideLevel( _levelId, _imgId);
		document.getElementById("resident_group_photo").style.top = "-122px";
		document.getElementById("resident_group_photo").style.left = "20px";
		nd()
		}
	}
	
function show_all() {
	if (document.getElementById("alinkImg").getAttribute("src") == "images/plus.gif") {
	document.getElementById("alinkImg").setAttribute("src","images/minus.gif");
	} else  {
	document.getElementById("alinkImg").setAttribute("src","images/plus.gif");
	}
	showLevel('clink', 'clinkImg');
	showLevel('slink', 'slinkImg');
	showLevel('palink', 'palinkImg');
	showLevel('relink', 'relinkImg');
	nd();
	
}




function openExtWin(url) {
	window.open(url, 'Link', 'width=800, height=600, top=50, left=50,resizable=yes, scrollbars=yes, location=yes, status=yes,toolbar=yes');
	return false;
}