if (document.images)
    self.name = 'mainwindow';
function switchMenu(obj) {
	var el = document.getElementById(obj);
	if ( el.style.display != "none" ) {
		el.style.display = 'none';
	}
	else {
		el.style.display = '';
	}
}

function MM_openBrWindow(theURL,winName,features) { //v2.0
  window.open(theURL,winName,features);
}
function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}
var timerID = "global";
function hideMenus() 
{
   // insert the MM_showHideLayers function you create that 
   // hides all popout layers. Be sure you put a semi-colon
   // at the end of the code. Here is an example:
   MM_showHideLayers('popupNav','','hide');
}
function startTimer()
{
   stopTimer();
   // the number "700" is the number of milli-seconds (thousands-of-a-second)

   timerID = setTimeout("hideMenus()", 700);
}
function stopTimer()
{
   clearTimeout(timerID);
}
function MM_reloadPage(init) {  //reloads the window if Nav4 resized
  if (init==true) with (navigator) {if ((appName=="Netscape")&&(parseInt(appVersion)==4)) {
    document.MM_pgW=innerWidth; document.MM_pgH=innerHeight; onresize=MM_reloadPage; }}
  else if (innerWidth!=document.MM_pgW || innerHeight!=document.MM_pgH) location.reload();
}
MM_reloadPage(true);

function MM_showHideLayers() { //v6.0
  var i,p,v,obj,args=MM_showHideLayers.arguments;
  for (i=0; i<(args.length-2); i+=3) if ((obj=MM_findObj(args[i]))!=null) { v=args[i+2];
    if (obj.style) { obj=obj.style; v=(v=='show')?'visible':(v=='hide')?'hidden':v; }
    obj.visibility=v; }
}

function MM_callJS(jsStr) { //v2.0
  return eval(jsStr)
}

function JOINUS_checkfields(f){
	
	if (f.first_name.value == ""){
			alert("Please enter your first name.");
			return;
	}
	if (f.last_name.value == ""){
			alert("Please enter your last name.");
			return;
	}
	if (f.email.value == ""){
			alert("Please enter your email address.");
			return;
	}
	if (f.interest.value == ""){
			alert("Please indicate your interest.");
			return;
	}

	
	f.submit();
}
function CON_checkfields(f){
	
	if (f.first_name.value == ""){
			alert("Please enter your first name.");
			return;
	}
	if (f.last_name.value == ""){
			alert("Please enter your last name.");
			return;
	}
	if (f.ea.value == ""){
			alert("Please enter your email address.");
			return;
	}
	
	if (f.subject.selectedIndex == 0) {
	 	f.action='http://ui.constantcontact.com/d.jsp';
	 	f.target='_blank';
	}
	
	f.submit();
}

function SUB_checkfields(f){
	
	if (f.first_name.value == ""){
			alert("Please enter your first name.");
			return;
	}
	if (f.last_name.value == ""){
			alert("Please enter your last name.");
			return;
	}
	if (f.email.value == ""){
			alert("Please enter your email address.");
			return;
	}

	
	f.submit();
}
function ABSTRACT_checkfields(f){
	
	if (f.first_name.value == ""){
			alert("Please enter your first name.");
			return;
	}
	if (f.last_name.value == ""){
			alert("Please enter your last name.");
			return;
	}
	if (f.email.value == ""){
			alert("Please enter your email address.");
			return;
	}
	if (f.institution.value == ""){
			alert("Please enter your institution.");
			return;
	}
	if (f.titlerank.value == ""){
			alert("Please enter your title.");
			return;
	}
	if (f.degree.value == ""){
			alert("Please enter your degree.");
			return;
	}
	if (f.address.value == ""){
			alert("Please enter your address.");
			return;
	}
	if (f.zip.value == ""){
			alert("Please enter your zip.");
			return;
	}
	if (f.phone.value == ""){
			alert("Please enter your phone.");
			return;
	}
	f.submit();
}