I'm volunteering to redesign the website of a non-profit and I suspect that their current code was generated with a WYSIWYG editor. There are multiple functions that are prefaced with "MM" such as MM_swapImgRestore() and MM_preLoadImg(). Is this Dreamweaver? I've copied a bunch of their code below to give a fuller picture.

Code:
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>Laurens House 4 Positive Change Inc</title>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1"><link href="stylesheet.css" rel="stylesheet" type="text/css">
<script language="JavaScript" type="text/JavaScript">
<!--
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() { //v3.0document.getElementById('navcontainer').style.visibility = 'hidden';
  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];}
}
//-->
</script>
</head><script>
function show()
{
document.getElementById('navcontainer').style.visibility = 'visible';
setTimeout("hide()",2500);
}
function hide()
{
document.getElementById('navcontainer').style.visibility = 'hidden';
}
</script>


<body background="images/websiteFlashBackgrd.jpg" leftmargin="0" topmargin="0" marginwidth="0" marginheight="0" onLoad="MM_preloadImages('images/aAboutUson.gif','images/aHomeButton.gif','images/aIntroLifeon.gif','images/aCalendaron.gif','images/aFormson.gif','images/aStoreon.gif','images/aDonateon.gif','images/aContactUson.gif')">
<div align="center">
One thing that really stood out is that there is JS in between the closing </head> tag and the beginning <body> tag. There shouldn't be anything between these two tags, correct?