<!--
isNS4 = (document.layers) ? true : false;
isIE4 = (document.all && !document.getElementById) ? true : false;
isIE5 = (document.all && document.getElementById) ? true : false;
isNS6 = (!document.all && document.getElementById) ? true : false;
Opera = false;
if (typeof(window.opera) != 'undefined') {
	browserName = ' ' + navigator.userAgent.toLowerCase();
	if ((browserName.indexOf('opera') != 0)) {
		Opera = true;
		isIE5 = isIE4 = isNS6 = isNS4 = false;
	};
};

function GetElementByID (myid) {
	if (isNS4) objElement = document.layers[myid]; 
	else if (isIE4) objElement = document.all[myid];
		else if (isIE5 || isNS6 || Opera) objElement = document.getElementById(myid);
	return(objElement);
};

function toggleExpand (evt) {
	if (isNS4 || isNS6) var head = evt.target
	else var head = window.event.srcElement;
	if ( (head.className == "expand") || (head.className == "plus-minus") ) {
		headID = head.id;
		section = GetElementByID('sect' + headID.substring(4, headID.length));
	  	if (section) {
			picture = GetElementByID('pict' + headID.substring(4, headID.length));
      		if (section.style.display == "block") {
		        section.style.display = "none";
				picture.src = "/images/plus.gif";
		    } 
			else {
				section.style.display = "block";
				picture.src = "/images/minus.gif";
			};
	  	};
	};
};

// -->