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++) if(!findMenu(a[i].name)) x.src=x.oSrc;
}

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_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];}
}
//-->


//Change Active Menu Image
// ATTENTION: the image tag must be named like the reffered page following by the 0 for the first image menu, 1 - second image, ...
// use "menuImage('images/nav/light_1.jpg');" for the index.html page width <img name="index0" scr="images/nav/light_0.jpg" ...>
function menuImage(){
cFile=findMenu();
args = menuImage.arguments;
for (n=0; n<args.length; n++){
	argt = args[n];
	cImg=cFile+n;
	if(argt.length > 0){
//alert(cImg);
		MM_swapImage(cImg,'',argt,1);
	}
}
}

//Change Find Active Menu
// use findMenu() without arguments and the function returns the name of the active manue;
// use findMenu(Menu) with arguments and the function returns TRUE if the Menu is the active manue;
function findMenu(){
cDoc=document.URL;
nFind=cDoc.lastIndexOf("\\")+1;
if(nFind == 0)
	nFind=cDoc.lastIndexOf("/")+1;
cFile=cDoc.substr(nFind,cDoc.length)
nFind=cFile.lastIndexOf(".");
cFile=cFile.substr(0,nFind)
args = findMenu.arguments;
if(args.length>0){
	for (n=0; n<args.length; n++){
		argt = args[n];
		if(argt.lastIndexOf(cFile) == 0){
			return true;
}		else
			return false;
	}
} else {
	return cFile;
}

}