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 sfHover()
{
	var sfEls = document.getElementById("nav").getElementsByTagName("LI");
	for (var i=0; i<sfEls.length; i++) {
		sfEls[i].onmouseover=function() {
			this.className+=" sfhover";
		}
		sfEls[i].onmouseout=function() {
			this.className=this.className.replace(new RegExp(" sfhover\\b"), "");
		} 
	} 
}

function PreloadMenuImages()
{
	MM_preloadImages('/images/btnAboutOn.gif','/images/btnAboutDown.gif','/images/btnWhyOn.gif','/images/btnWhyDown.gif','/images/btnWhatOn.gif','/images/btnWhatDown.gif','/images/btnHowOn.gif','/images/btnHowDown.gif','/images/btnContactOn.gif','/images/btnContactDown.gif');
}

function PositionFooter()
{
	if (document.getElementById)
	{
		var headerElement = document.getElementById("header");
		var bodyElement = document.getElementById("contentBody");
		var footerElement = document.getElementById("footerTable");
		if (headerElement == null || bodyElement == null || footerElement == null) return;

		var windowHeight = 580;
		if (parseInt(navigator.appVersion) > 3)
		{
			if (navigator.appName == "Netscape")
				windowHeight = window.innerHeight;
			else if (navigator.appName.indexOf("Microsoft") != -1)
				windowHeight = document.body.offsetHeight;
		}

		bodyElement.style.height = (windowHeight - footerElement.clientHeight - headerElement.clientHeight - 10) + "px";
	}
}

if (window.attachEvent)
{
	window.attachEvent("onload", sfHover);
	window.attachEvent("onload", PositionFooter);
	window.attachEvent("onresize", PositionFooter);
	window.attachEvent("onload", PreloadMenuImages);
}
else if (window.addEventListener)
{
	window.addEventListener("load", PositionFooter, false);
	window.addEventListener("resize", PositionFooter, false);
	window.addEventListener("load", PreloadMenuImages, false);
}
else
{ // Needed?
//	window.onload = PositionFooter;
//	window.onresize = PositionFooter;
// etc.
}