function ToggleDisplay(oButton)
{
	var myButton = oButton;
	var myItems = myButton.parentNode.nextSibling;
	
	while( myItems.nodeType != "1" )
	{
		myItems = myItems.nextSibling;
	}	

	if ( myButton.innerHTML == "+" ) {
		myButton.parentNode.style.borderBottom = "none";
		myItems.style.borderBottom = "dotted 1px #6a3d4c";
		myButton.innerHTML = "–";
		new Effect.BlindDown( myItems );
	}
	else
	{

		new Effect.BlindUp( myItems );
		myButton.parentNode.style.borderBottom = "dotted 1px #6a3d4c";
		myItems.style.borderBottom = "none";
		myButton.innerHTML = "+";
		
	}

}

function setCollapse() {
	document.getElementById('instruct').style.display = "block";
	
	var links = document.getElementsByTagName( 'span' );
	for( var i=0; i < links.length; i++) {
		if( links[i].innerHTML == "+" ) {
			links[i].onclick = function(){ToggleDisplay( this )};
			links[i].onkeyup = function(){ToggleDisplay( this )};
			links[i].style.cursor = "pointer";
			links[i].style.display = "inline";
		}
		else {
			links[i].style.display = "inline";
		}
	}
	
}