if (document.images) {      
	nav_cases = new Image()
	nav_cases.src = "../../images/nav_cases_on.gif"
	nav_cases_r = new Image()
	nav_cases_r.src = "../../images/nav_cases_roll.gif"
	nav_faq = new Image()
	nav_faq.src = "../../images/nav_faq.gif"
	nav_faq_r = new Image()
	nav_faq_r.src = "../../images/nav_faq_roll.gif"
	nav_handouts = new Image()
	nav_handouts.src = "../../images/nav_handouts.gif"
	nav_handouts_r = new Image()
	nav_handouts_r.src = "../../images/nav_handouts_roll.gif"
	nav_dxa = new Image()
	nav_dxa.src = "../../images/nav_dxa.gif"
	nav_dxa_r = new Image()
	nav_dxa_r.src = "../../images/nav_dxa_roll.gif"
	nav_info = new Image()
	nav_info.src = "../../images/nav_info.gif"
	nav_info_r = new Image()
	nav_info_r.src = "../../images/nav_info_roll.gif"
	btn_close = new Image()
	btn_close.src = "../../images/btn_close.gif"
	btn_close_r = new Image()
	btn_close_r.src = "../../images/btn_close_roll.gif"	
	}

function imgOn(imgName) {
	document[imgName].src = eval(imgName + "_r.src");
	}
		
function imgOff(imgName) {
    document[imgName].src = eval(imgName + ".src");
	}

function popUp(page) {
var photo = window.open(page,"photoWindow","height=480,width=700,scrollbars,menubars=0,toolbars=0,resizable");
 photo.focus();
}

/*
JSTarget function by Roger Johansson, www.456bereastreet.com
*/
var JSTarget = {
	init: function(att,val,warning) {
		if (document.getElementById && document.createElement && document.appendChild) {
			var strAtt = ((typeof att == 'undefined') || (att == null)) ? 'class' : att;
			var strVal = ((typeof val == 'undefined') || (val == null)) ? 'non-html' : val;
			var strWarning = ((typeof warning == 'undefined') || (warning == null)) ? ' (opens in a new window)' : warning;
			var oWarning;
			var arrLinks = document.getElementsByTagName('a');
			var oLink;
			var oRegExp = new RegExp("(^|\\s)" + strVal + "(\\s|$)");
			for (var i = 0; i < arrLinks.length; i++) {
				oLink = arrLinks[i];
				if ((strAtt == 'class') && (oRegExp.test(oLink.className)) || (oRegExp.test(oLink.getAttribute(strAtt)))) {
					oWarning = document.createElement("em");
					oWarning.appendChild(document.createTextNode(strWarning));
					oLink.appendChild(oWarning);
					oLink.onclick = JSTarget.openWin;
				}
			}
			oWarning = null;
		}
	},
	openWin: function(e) {
		var event = (!e) ? window.event : e;
		if (event.shiftKey || event.altKey || event.ctrlKey || event.metaKey) return true;
		else {
		    var oWin = window.open(this.getAttribute('href'), '_blank', 'menubar=yes,location=yes,toolbar=yes,scrollbars=yes,resizable=yes,screenX=800,screenY=0,top=0,left=800,width=700,height=650');
			if (oWin) {
				if (oWin.focus) oWin.focus();
				return false;
			}
			oWin = null;
			return true;
		}
	},
	/*
	addEvent function from http://www.quirksmode.org/blog/archives/2005/10/_and_the_winner_1.html
	*/
	addEvent: function(obj, type, fn) {
		if (obj.addEventListener)
			obj.addEventListener(type, fn, false);
		else if (obj.attachEvent) {
			obj["e"+type+fn] = fn;
			obj[type+fn] = function() {obj["e"+type+fn]( window.event );}
			obj.attachEvent("on"+type, obj[type+fn]);
		}
	}
};
JSTarget.addEvent(window, 'load', function(){JSTarget.init("rel","external","");});