function setActiveStyleSheet(title) {
  var i, a, main;
  createCookie("style", title, 365);
  
  for(i=0; (a = document.getElementsByTagName("link")[i]); i++) {
    if(a.getAttribute("rel").indexOf("style") != -1 && a.getAttribute("title")) {
      a.disabled = true;
      if(a.getAttribute("title") == title) a.disabled = false;  
    }
  }
}

function getActiveStyleSheet() {
  var i, a;
  for(i=0; (a = document.getElementsByTagName("link")[i]); i++) {
    if(a.getAttribute("rel").indexOf("style") != -1 && a.getAttribute("title") && !a.disabled)
		return a.getAttribute("title");
  }
  return null;
}

function getPreferredStyleSheet() {
	var i, a;
	for(i=0; (a = document.getElementsByTagName("link")[i]); i++) {
		if(a.getAttribute("rel").indexOf("style") != -1
			&& a.getAttribute("rel").indexOf("alt") == -1
			&& a.getAttribute("title")) 
			return a.getAttribute("title");
	}
	return null;
}

function createCookie(name,value,days) {
	if (days) {
		var date = new Date();
		date.setTime(date.getTime()+(days*24*60*60*1000));
		var expires = "; expires="+date.toGMTString();
	}
	else expires = "";
	document.cookie = name+"="+value+expires+"; path=/";
}

function readCookie(name) {
	var nameEQ = name + "=";
	var ca = document.cookie.split(';');
	for(var i=0;i < ca.length;i++) {
		var c = ca[i];
		while (c.charAt(0)==' ') c = c.substring(1,c.length);
		if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length);
	}
	return null;
}


var cookie = readCookie("style");
var title = cookie ? cookie : getPreferredStyleSheet();
setActiveStyleSheet(title);


function doPreload(lev)
{
	preload('A7ptoff',lev + 'images/a7pt.gif')
	preload('A7pton',lev + 'images/a7pton.gif')
	preload('A8ptoff',lev + 'images/a8pt.gif')
	preload('A8pton',lev + 'images/a8pton.gif')
	preload('A9ptoff',lev + 'images/a9pt.gif')
	preload('A9pton',lev + 'images/a9pton.gif')
	preload('upon',lev + 'images/upon.gif')
	preload('upoff',lev + 'images/upoff.gif')
	preload('backon',lev + 'images/backon.gif')
	preload('backoff',lev + 'images/backoff.gif')
	preload('menuon',lev + 'images/tomenuon.gif')
	preload('menuoff',lev + 'images/tomenuoff.gif')
}



        
function getNavMenu(lev){
	var menu = ""
    menu+= "<div id=nav><ul>"
    menu+= addNavMenuItem("#DEDEDE", "index.asp", "btn-home-nl", "home", lev)
    menu+= addNavMenuItem("#FFE7BD", "Aspartaam-veelgestelde_vragen.asp", "btn-faq-nl", "info", lev)
    menu+= addNavMenuItem("#FFCCCC", "Aspartaam-nieuws.asp", "btn-news-nl", "news", lev)
    menu+= addNavMenuItem("#ffccff", "Wetenschappelijke_bibliotheek.asp", "btn-scilib-nl", "scilib", lev)
    menu+= addNavMenuItem("#C6E7E7", "Aspartaam-opinie.asp", "btn-opinion-nl", "opinion", lev)
    //menu+= addNavMenuItem("#FFE7BD", "Aspartaam-links.asp", "btn-links-nl", "links", lev)
    //menu+= addNavMenuItem("#FFCCCC", "Zoeken.asp", "Zoeken", "search", lev)
    menu+= "</ul></div>"
    return menu
}        

function addNavMenuItem(bg, link, btn, id, lev){
	var ret = ""
	ret += "<li id=" + id + " style=\"background-color:" + bg + "\"><A HREF=\"" + lev + link + "\"><div class=navpad><img src=" + lev + "images/" + btn + ".gif border=0></div></A></li>"
	return ret
}     

function getSearch()
{
	var ret = ""
	
	ret += "<div id=search style=\"padding-left:10px\"><form id=frmsearch method=post action=Zoeken.asp>"
	ret += "Zoeken<br><input type=text name=term style=\"width:130px\"><input type=submit value=Go>"
	ret += "</form></div>"
	return ret
	
}


function val(frm){
	if(frm.email.value.indexOf('@') == -1){
		alert("Please enter an email address")
		return false
	}	
	else{
		return true
	}
}


function getHeader(lev, hdr)
{

	var ret = ""
	ret+= '<a name=top></a><table BORDER=0 CELLPADDING=0 CELLSPACING=0 WIDTH=100% bgcolor=white>'
	ret+= '<tr VALIGN=TOP>'
	ret+= '<td bgcolor=black width=123 height=90 align=center><img src=\"' + lev + 'images/logo-nl.gif\" border=0></td>'
	ret+= '<td colspan=3 align=center style=\"padding:10px\" vALIGN=bottom bgcolor=white><img src=\"' + lev + 'images/hd-' + hdr + '-nl.gif\"></td>'
	ret+= '</tr>'
	ret+= '<tr VALIGN=TOP>'
	ret+= '<td colspan=4 bgcolor=#e7e7e7 height=1><img src=\"' + lev + 'images/pixel.gif\" width=1 height=1 border=0></td>'
	ret+= '</tr>'
	ret+= '</table>'
	return ret
}



function getFooter(lev,pg)
{

	var ret = ""
	ret+= '<table BORDER=0 CELLPADDING=0 CELLSPACING=0 WIDTH=100% bgcolor=white>'
	ret+= '<tr VALIGN=TOP>'
	ret+= '<td colspan=4 bgcolor=#e7e7e7></td>'
	ret+= '</tr>'
	
	if(pg == 'home')
	{
		ret+= '<tr VALIGN=TOP>'
		ret+= '<td colspan=4 align=center style=\"padding-left:17px;padding-top:5px\" bgcolor=white>'
	
		ret+= '<table cellpadding=3 cellspacing=0 border=0>'
		ret+= '<tr>'
		ret+= '<td align=center valign=top><a href=http://www.aspartame.info><img SRC=' + lev + 'images/aspartame_information_flag_uk.gif ALT=\"Aspartame Information English\" BORDER=0></a></td>'
		ret+= '<td align=center valign=top><img SRC=' + lev + 'images/aspartame_information_flag_us.gif ALT=\"Aspartame Information American\" BORDER=0 usemap=#go></td>'
		ret+= '<td align=center valign=top><a href=http://deutsch.aspartam.info><img SRC=' + lev + 'images/aspartame_information_flag_de.gif ALT=\"Aspartame Information German\" BORDER=0></a></td>'
		ret+= '<td align=center valign=top><a href=http://francais.aspartame.info><img SRC=' + lev + 'images/aspartame_information_flag_fr.gif ALT=\"Aspartame Information French\" BORDER=0></a></td>'
		ret+= '<td align=center valign=top><a href=http://www.aspartam.se><img SRC=' + lev + 'images/aspartame_information_flag_sw.gif ALT=\"Aspartame Information Swedish\" BORDER=0></a></td>'    
		ret+= '<td align=center valign=top><a href=http://serbian.aspartame.info><img SRC=' + lev + 'images/aspartame_information_flag_cs.gif ALT=\"Aspartame Information Serbian\" BORDER=0></a></td>'
		ret+= '<td align=center valign=top><a href=http://polska.aspartame.info><img SRC=' + lev + 'images/aspartame_information_flag_pl.gif ALT=\"Aspartame Information Polish\" BORDER=0></a></td>'
		ret+= '<td align=center valign=top><a href=http://italia.aspartame.info><img SRC=' + lev + 'images/it-flag-sm.gif ALT=\"Aspartame Information Italian\" BORDER=0></a></td>'
		ret+= '<td align=center valign=top><a href=http://nederlands.aspartame.info><img SRC=' + lev + 'images/aspartame_information_flag_nl.gif ALT=\"Aspartame Information Dutch\" BORDER=0></a></td>'
		ret+= '</tr>'
		ret+= '</table>'
	
	
		ret+= '</td>'
		ret+= '</tr>'
	}
	
	ret+= '<tr VALIGN=TOP>'
	ret+= '<td align=center colspan=4 style=\"padding-left:20px;padding-top:5px\" bgcolor=white>'
	
	ret+= '<a HREF=' + lev + 'Aspartaam-veelgestelde_vragen.asp>Veelgestelde vragen</a>&nbsp;|&nbsp;'
	ret+= '<a HREF=' + lev + 'Aspartaam-nieuws.asp>Aspartaam nieuws</a>&nbsp;|&nbsp;'
	ret+= '<a href=' + lev + 'Wetenschappelijke_bibliotheek.asp>Wetenschappelijke bibliotheek</a>&nbsp;|&nbsp;'
	ret+= '<a HREF=' + lev + 'Aspartaam-opinie.asp>Opinie</a>&nbsp;|&nbsp;'
	ret+= '<a HREF=' + lev + 'Aspartaam-links.asp>Links</a>&nbsp;|&nbsp;'
	ret+= '<a HREF=' + lev + 'Zoeken.asp>Zoeken</a><br><br>'
	
	
	ret+= '</td>'
	ret+= '</tr>'
	ret+= '</table>'
	ret+= getCopy()
	return ret
}




function getCopy(){
	return '<span class=copy>&copy; Aspartame Information Service ' + getYear() + '</span>'
}

function getPageEndLinks(contents, link, lev){

	var ret = ""

	ret+= '<div id=pageendlinks>' +
		'<a HREF=#top onmouseover=\"swapImage(up,upon)\" onmouseout=\"swapImage(up,upoff)\">' +
		'<img id=up name=up SRC=' + lev + 'images/upoff.gif WIDTH=10 HEIGHT=10 border=0></a>&nbsp;' +
		'<a HREF=#top onmouseover=\"swapImage(up,upon)\" onmouseout=\"swapImage(up,upoff)\">' +
		'Naar boven</a>&nbsp;&nbsp;&middot;&nbsp;&nbsp;' +
		'<a HREF=javascript:history.go(-1) onmouseover=\"swapImage(back,backon)\" onmouseout=\"swapImage(back,backoff)\">' +
		'<img id=back name=back SRC=' + lev + 'images/backoff.gif WIDTH=10 HEIGHT=10 border=0></a>&nbsp;' +
		'<a HREF=javascript:history.go(-1) onmouseover=\"swapImage(back,backon)\" onmouseout=\"swapImage(back,backoff)\">' +
		'Terug naar vorige pagina</a>'
	if(contents != "")
		ret+= '&nbsp;&nbsp;&middot;&nbsp;&nbsp;' +
			'<a HREF=../' + link + ' onmouseover=\"swapImage(tomenu,menuon)\" onmouseout=\"swapImage(tomenu,menuoff)\">' +
			'<img id=tomenu name=tomenu SRC=../images/tomenuoff.gif WIDTH=10 HEIGHT=10 border=0></a>&nbsp;' +
			'<a HREF=../' + link + ' onmouseover=\"swapImage(tomenu,menuon)\" onmouseout=\"swapImage(tomenu,menuoff)\">Terug naar ' + contents + '</a>'
	ret+= '</div>'
	
	return ret
	
}





function GetADate(){
	var d = new Date()
	var months = new Array()
	months[0] = "January"
	months[1] = "February"
	months[2] = "March"
	months[3] = "April"
	months[4] = "May"
	months[5] = "June"
	months[6] = "July"
	months[7] = "August"
	months[8] = "September"
	months[9] = "October"
	months[10] = "November"
	months[11] = "December"
	return d.getDate() + ' ' + months[d.getMonth()] + ' ' + d.getFullYear()
}




function getYear(){
	var d = new Date()
	return d.getFullYear()
}



function doTicker(){

	if(document.all){
	
		if(ptr == 1){
		   nextStory();
		}

		if(ptr != stories[story].length) {
			drawStory();
		}
		else{
			stopStory();
		}
          
    }
    else{
		tckr = document.getElementById("tckr")
		story =Math.round(Math.random() * (stories.length - 1))		
		tckr.innerHTML = titles[story] +  urls[story] + stories[story] + '</a>'
    }
          		
}

function nextStory(){
	story = story + 1
	if(story > stories.length - 1) story = 0
}

function drawStory(){

	if(!document.all) tckr = document.getElementById("tckr")
	
	tckr.innerHTML = titles[story] + stories[story].substring(0,ptr) + widget
	ptr ++
	
	setTimeout('doTicker()',100)
	
}

function stopStory(){

	if(!document.all) tckr = document.getElementById("tckr")
	tckr.innerHTML = titles[story] + urls[story] + stories[story] + '</a>'
	ptr = 1
	setTimeout("doTicker()", 5000);
	
}




function preload(imgObj,imgSrc) {
	if (document.images) {
		eval(imgObj+' = new Image()')
		eval(imgObj+'.src = "'+imgSrc+'"')
	}
}

function swapImage(img1, img2){
	img1.src = img2.src
}

function rollin(obj, c){
	//eval("obj.style.cssText='background-color:" + c + "'")
	eval("obj.style.cssText = 'border:solid 1px #000000'")
	obj.style.cursor = 'pointer'
}
function rollout(obj, c){
	//eval("obj.style.cssText='background-color:" + c + "'")
	eval("obj.style.cssText = 'border:solid 1px #b0b0b0'")
}

function highlightButton(b){
	btn = document.getElementById(b)
	btntext = document.getElementById("nav" + b)
	if(btn){
		btn.style.cssText = "background-color:#99B717"
		btntext.style.cssText = "color:white"
	}	
}

function getRightHome()
{
	var ret = ""
	
	ret += "<table border=0 cellpadding=5 cellspacing=0>"
	ret += "<tr><td align=right bgcolor=#f7f7f7>" + GetADate() + "</td><tr>"
	ret += "<tr><td align=center><a href=\"onpagepdf/Aspartame_Information.pdf\" target=_new>Aspartam: De zoetstof uit natuurlijke bouwstenen</a></td></tr>"
	ret += "<tr><td align=center><a href=\"onpagepdf/Aspartame_Information.pdf\" target=_new><img SRC=\"images/dutch leaflet.jpg\" border=0></a></td></tr>"
	ret += "<tr><td height=10 bgcolor=#f7f7f7></td><tr>"
	ret += "</table>"
	
	return ret
}