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_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_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];}
}

function clearDefault (el) {
	if (el.defaultValue==el.value) el.value = ""
}

function resetDefault (el) {
	if (el.value == "") el.value = el.defaultValue
}

function highlight(elem) {
	var x = document.getElementById(elem);
	x.style.backgroundImage = "url(images/nav_highlight_trans.png)";
}

function out(elem) {
	var x = document.getElementById(elem);
	x.style.backgroundImage = "";
}

function checkForm (frm) {
	var emailRX = /^([\w]+)(.[\w]+)*@([\w]+)(.[\w]{2,3}){1,2}$/;
	var msg = "";
	if (frm.submit_type.value == "") {
		return false;
	} else if (frm.submit_type.value == "signup") {
		if (frm.name.value == frm.name.defaultValue) {
			msg += "Please enter your name.\n";
		}
		if (emailRX.test(frm.email.value) != true) {
			msg += "Please enter a valid email.\n";
		}
		if(msg == "") {
			return true;
		} else {
			alert (msg);
			return false;
		}
	}
}


var TimeToFade = 1000;

function showFeedback(type) {
    if (type == "signupSuccess") {
        var newdiv = document.createElement('div');
        newdiv.setAttribute('id', 'feedback');
        newdiv.setAttribute('class', 'success');
        newdiv.innerHTML = "Thank you for signing up!";
        document.body.appendChild(newdiv);

        setTimeout("fade ('feedback')", 5000);
    }
}

function fade(eid) {
    var element = document.getElementById(eid);
    if (element == null) return;

    if (element.FadeState == null) {
        if (element.style.opacity == null || element.style.opacity == '' || element.style.opacity == '1') {
            element.FadeState = 2;
        } else {
            element.FadeState = -2;
        }
    }

    if (element.FadeState == 1 || element.FadeState == -1) {
        element.FadeState = element.FadeState == 1 ? -1 : 1;
        element.FadeTimeLeft = TimeToFade - element.FadeTimeLeft;
    } else {
        element.FadeState = element.FadeState == 2 ? -1 : 1;
        element.FadeTimeLeft = TimeToFade;
        setTimeout("animateFade(" + new Date().getTime() + ",'" + eid + "')", 33);
    }
}

function animateFade(lastTick, eid) {
    var curTick = new Date().getTime();
    var elapsedTicks = curTick - lastTick;

    var element = document.getElementById(eid);

    if (element.FadeTimeLeft <= elapsedTicks) {
        element.style.opacity = element.FadeState == 1 ? '1' : '0';
        element.style.filter = 'alpha(opacity = ' + (element.FadeState == 1 ? '100' : '0') + ')';
        element.FadeState = element.FadeState == 1 ? 2 : -2;
        element.style.display = "none";
        return;
    }

    element.FadeTimeLeft -= elapsedTicks;
    var newOpVal = element.FadeTimeLeft / TimeToFade;
    if (element.FadeState == 1) {
        newOpVal = 1 - newOpVal;
    }

    element.style.opacity = newOpVal;
    element.style.filter = 'alpha(opacity = ' + (newOpVal * 100) + ')';

    setTimeout("animateFade(" + curTick + ",'" + eid + "')", 33);
}