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

var enlargeWindow;
fn_preloadImages('images/navbarhome_f2.gif','images/navbarlog_f2.gif','images/navbarmap_f2.gif','images/navbarboat_f2.gif','images/navbarphotos_f2.gif','images/navbaressays_f2.gif');

function fn_ShowEnlargement(winName, urlForEnlarge) { 
  if (enlargeWindow && !enlargeWindow.closed) {
		enlargeWindow.location.href = urlForEnlarge;
	}
	else {
		enlargeWindow = window.open(urlForEnlarge,winName,'toolbar=no,status=no,location=no,resizable=yes,menubar=yes,scrollbars=yes');
	}
	enlargeWindow.focus();
	return false;
}

function fn_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=fn_findObj(n,d.layers[i].document);
  if (!x && d.getElementById) x=d.getElementById(n); 
  return x;
}

function fn_nbGroup(event, grpName) { //v3.0
  var i, img, nbArr, args=fn_nbGroup.arguments;
  if (event == "init" && args.length > 2) {
    if ((img = fn_findObj(args[2])) != null && !img.fn_init) {
      img.fn_init = true; 
	  	img.fn_up = args[3]; 
	  	img.fn_dn = img.src;
    	if ((nbArr = document[grpName]) == null) nbArr = document[grpName] = new Array();
      nbArr[nbArr.length] = img;
      for (i=4; i < args.length-1; i+=2) 
	  		if ((img = fn_findObj(args[i])) != null) {
        	if (!img.fn_up) img.fn_up = img.src;
        	img.src = img.fn_dn = args[i+1];
        	nbArr[nbArr.length] = img;
    		} 
		}
  } else if (event == "over") {
    document.fn_nbOver = nbArr = new Array();
    for (i=1; i < args.length-1; i+=3) 
		if ((img = fn_findObj(args[i])) != null) {
			if (!img.fn_up) img.fn_up = img.src;
				img.src = (img.fn_dn && args[i+2]) ? args[i+2] : args[i+1];
			nbArr[nbArr.length] = img;
	    }
	} else if (event == "out" ) {
		for (i=0; i < document.fn_nbOver.length; i++) {
			img = document.fn_nbOver[i]; img.src = (img.fn_dn) ? img.fn_dn : img.fn_up; 
		}
	} else if (event == "down") {
		if ((nbArr = document[grpName]) != null)
			for (i=0; i < nbArr.length; i++) { img=nbArr[i]; img.src = img.fn_up; img.fn_dn = 0; }
		document[grpName] = nbArr = new Array();
			for (i=2; i < args.length-1; i+=2) 
				if ((img = fn_findObj(args[i])) != null) {
		      		if (!img.fn_up) img.fn_up = img.src;
						img.src = img.fn_dn = args[i+1];
					nbArr[nbArr.length] = img;
				}
	}
}