if (typeof(Option)+"" != "undefined") v=true;
if(v){a=new Array();aln=0;}

function getFormNum (formName) {
formNum =-1;
for (i=0;i<document.forms.length;i++){
tempForm = document.forms[i];
if (formName == tempForm) {
formNum = i;
correctForm = tempForm;
break;
   }
}
return formNum;
}

function jmp(formName,elementNum) {
getFormNum(formName);
if (formNum>=0) {
with (document.forms[formNum].elements[elementNum]) {
i=selectedIndex;
if (i>=0) location=options[i].value;
      }
   }
}

function O(txt,url) {
a[k]=new Option(txt,url);k++;
}

function relate(formName,elementNum,j) {
var language;
if (document.forms.language!=null) language=document.forms.language.language.value;
else language='en';
if(v) {
k=1;
a=new Array();
if (language=='fr') { O("Choisissez l'annee","");}
else if (language=='nl') { O("Kies het jaar","");}
else { O("Choose the year","");}

if(j==0) {  // default category item
}

if(j==1) { // 1st category items
O("1966","#an1966");
O("1967","#an1967");
O("1968","#an1968");
O("1969","#an1969");
O("1970","#an1970");
}

if(j==2) { // 2nd category items
O("1971","#an1971");
O("1972","#an1972");
O("1973","#an1973");
O("1974","#an1974");
O("1975","#an1975");
O("1976","#an1976");
O("1977","#an1977");
O("1978","#an1978");
O("1979","#an1979");
O("1980","#an1980");
}

if(j==3) { // 3rd category items
O("1981","#an1981");
O("1982","#an1982");
O("1983","#an1983");
O("1984","#an1984");
O("1985","#an1985");
O("1986","#an1986");
O("1987","#an1987");
O("1988","#an1988");
O("1989","#an1989");
O("1990","#an1990");
}

if(j==4) { // 4th category items
O("1991","#an1991");
O("1992","#an1992");
O("1993","#an1993");
O("1994","#an1994");
O("1995","#an1995");
O("1996","#an1996");
O("1997","#an1997");
O("1998","#an1998");
O("1999","#an1999");
O("2000","#an2000");
}

if(j==5) { // 5th category items
O("2001","#an2001");
O("2002","#an2002");
O("2003","#an2003");
O("2004","#an2004");
O("2005","#an2005");
}

aln2=a.length;
getFormNum(formName);
if (formNum>=0) {
formNum = formNum + 1;
with (document.forms[formNum].elements[elementNum]) {
for (var i=options.length-1;i>0;i--) options[i]=null;
for (var i=1;i<aln2;i++) options[i-1]=a[i];
options[0].selected=true;
      }
   }
} else {
jmp(formName,elementNum);
   }
}

function plus()
{
code_html = '<a href="'+liens[chiffre]+'" title="'+liens[chiffre]+'" ><img border="0" src="'+pictures[chiffre]+'"></a>';
document.getElementById("zone_bannieres").innerHTML = code_html;
	if(chiffre == longueur)
        { chiffre = 0; }
        else
        { chiffre++; }
changement = 1;
//durée d'affichage d'une bannière en secondes
window.setTimeout("plus()", (changement*3000));
}

pictures = new Array()
pictures[0] = 'images/accueil/slide01_fr.gif';
pictures[1] = 'images/accueil/slide02_fr.gif';
pictures[2] = 'images/accueil/slide03_fr.gif';
pictures[3] = 'images/accueil/slide04_fr.gif';
pictures[4] = 'images/accueil/slide05_fr.gif';
longueur = pictures.length-1;

liens = new Array()
liens[0] = 'contacts';
liens[1] = 'products/geolbelgica';
liens[2] = 'contacts';
liens[3] = 'http://www.sciencesnaturelles.be/science/collections/minerals';
liens[4] = 'research';
chiffre = 0;


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_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_showHideLayers() { //v6.0
  var i,p,v,obj,args=MM_showHideLayers.arguments;
  for (i=0; i<(args.length-2); i+=3) if ((obj=MM_findObj(args[i]))!=null) { v=args[i+2];
    if (obj.style) { obj=obj.style; v=(v=='show')?'visible':(v=='hide')?'hidden':v; }
    obj.visibility=v; }
}

function MM_openBrWindow(theURL,winName,features) { //v2.0
  window.open(theURL,winName,features);
}

function pop()
{
    var myAs = document.getElementsByTagName('area');
    for (var area = 0; area < myAs.length; ++area) {

        if (myAs[area].className == 'pop') {

            var pop = document.getElementById(myAs[area].href.substring(myAs[area].href.lastIndexOf('#') + 1));

            if (pop) {       
                pop.style.display = 'none';
                myAs[area].onclick = function() {
                    thisPopup = document.getElementById(this.href.substring(this.href.lastIndexOf('#') + 1))
                    thisPopup.style.display = (thisPopup.style.display == 'none') ? 'block' : 'none';
                    return false;
                };

                pop.onclick = function()
                {
                    this.style.display = 'none';
                };
            }
        }
    }
}
 
window.onload = pop;


function MM_reloadPage(init) {  //reloads the window if Nav4 resized
 if (init==true) with (navigator) {if ((appName=="Netscape")&&(parseInt(appVersion)==4)) {
   document.MM_pgW=innerWidth; document.MM_pgH=innerHeight; onresize=MM_reloadPage; }}
 else if (innerWidth!=document.MM_pgW || innerHeight!=document.MM_pgH) location.reload();
}
MM_reloadPage(true);

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_showHideLayers() { //v6.0
 var i,p,v,obj,args=MM_showHideLayers.arguments;
 for (i=0; i<(args.length-2); i+=3) if ((obj=MM_findObj(args[i]))!=null) { v=args[i+2];
   if (obj.style) { obj=obj.style; v=(v=='show')?'visible':(v=='hide')?'hidden':v; }
   obj.visibility=v; }
}