//STARTUP
var nav = window.Event ? true : false;
			if (nav) {
			window.captureEvents(Event.KEYDOWN);
			window.onkeydown = NetscapeEventHandler_KeyDown;
			} else {
			document.onkeydown = MicrosoftEventHandler_KeyDown;
			}

			function NetscapeEventHandler_KeyDown(e) {
			if (e.which == 13 && e.target.type != 'textarea' && e.target.type != 'submit') { return false; }
			return true;
			}

			function MicrosoftEventHandler_KeyDown() {
			if (event.keyCode == 13 && event.srcElement.type != 'textarea' && event.srcElement.type != 'submit')
				return false;
			return true;
			}
			//-->

//GUI FUNCTIONS
function expand(elementName, img)
{
	img = document.getElementById(img);
	var display = document.getElementById(elementName).style.display;
	document.getElementById(elementName).style.display = display==""?"none":"";
	img.src = display=="" ? "/layout/media/images/down.gif" : "/layout/media/images/up.gif";
}

function togglePanel(elementName, img)
{
	var display = document.getElementById(elementName).style.display;
	document.getElementById(elementName).style.display = display==""?"none":"";
	createCookie(elementName, document.getElementById(elementName).style.display, 365);
}

function toggleShow(elementName)
{
	var display = document.getElementById(elementName).style.display;
	document.getElementById(elementName).style.display = display==""?"none":"";
}

//GENERAL FUNCTIONALITY
function createCookie(name,value,days)
{
	if (days)
	{
		var date = new Date();
		date.setTime(date.getTime()+(days*24*60*60*1000));
		var expires = "; expires="+date.toGMTString();
	}
	else var expires = "";
	document.cookie = name+"="+value+expires+"; path=/";
}

function readCookie(name)
{
	var nameEQ = name + "=";
	var ca = document.cookie.split(';');
	for(var i=0;i < ca.length;i++)
	{
		var c = ca[i];
		while (c.charAt(0)==' ') c = c.substring(1,c.length);
		if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length);
	}
	return null;
}

function eraseCookie(name)
{
	createCookie(name,"",-1);
}

//VALIDATION
//from: http://www.crockford.com/javascript/remedial.html
function isNull(a) {
    return typeof a == 'object' && !a;
}