var sticky

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 MM_goToURL() { //v3.0
  var i, args=MM_goToURL.arguments; document.MM_returnValue = false;
  for (i=0; i<(args.length-1); i+=2) eval(args[i]+".location='"+args[i+1]+"'");
}

function preloadImages() {
  MM_preloadImages('../images/lower-more-o.gif');
}
function doHighlightNav(){
	
	var lastSlash // the position of the last slash in the path
	var fileName  // the name of the file
	var hashPos // the position of the hash symbol in the case of anchors
	var fullPath
	fullPath = document.URL;
//	fullPath = fullPath.replace(/\\/g,"/");     for local testing
	lastSlash = fullPath.lastIndexOf("/");
	fileName = fullPath.substring(lastSlash+1,fullPath.length);
	hashPos = fileName.lastIndexOf("#");
	if (hashPos!=-1) {
		noAnchor = fileName.substring(0,hashPos);
	}
	else {
		noAnchor = fileName;
	}
	
	switch (noAnchor){
		case "":
			MM_swapImage('navhome','','./images/home-over.gif',1);
			sticky='home';
			break;
		case "index.html":
			MM_swapImage('navhome','','./images/home-over.gif',1);
			sticky='home';
			break;
		case "what-we-do.html":
			MM_swapImage('navwhatwedo','','./images/what-we-do-over.gif',1);
			sticky='whatwedo';
			break;
		case "radiant-panels.html":
			MM_swapImage('navradiantpanels','','./images/radiant-panels-over.gif',1);
			sticky='radiantpanels';
			break;
		case "thermal-radiators.html":
			MM_swapImage('navthermalradiators','','./images/thermal-radiators-over.gif',1);
			sticky='thermalradiators';
			break;
		case "towel-rails.html":
			MM_swapImage('navtowelrails','','./images/towel-rails-over.gif',1);
			sticky='towelrails';
			break;
		case "contact-details.html":
			MM_swapImage('navcontact','','./images/contact-details-over.gif',1);
			sticky='contact';
			break;
		case "contact-details.php":
			MM_swapImage('navcontact','','./images/contact-details-over.gif',1);
			sticky='contact';
			break;
		
	}
}