var XMLHttpRequestObject = false; 

      if (window.XMLHttpRequest) {
        XMLHttpRequestObject = new XMLHttpRequest();
      } else if (window.ActiveXObject) {
        XMLHttpRequestObject = new ActiveXObject("Microsoft.XMLHTTP");
      }

      function getHoofdpagina(dataSource,o,divID) 
      { 
        if(XMLHttpRequestObject) {
          var obj = document.getElementById(divID); 
          XMLHttpRequestObject.open("GET", dataSource); 

          XMLHttpRequestObject.onreadystatechange = function() 
          { 
            if (XMLHttpRequestObject.readyState == 4 && 
              XMLHttpRequestObject.status == 200) { 
                obj.innerHTML = XMLHttpRequestObject.responseText; 
            } 
          } 
          XMLHttpRequestObject.send(null); 
        }
	checkpagina(o);
      }

      function SwitchPage(dataSource,o,divID)
      {
        if(XMLHttpRequestObject) {
          var obj = document.getElementById(divID);
          XMLHttpRequestObject.open("GET", dataSource);

          XMLHttpRequestObject.onreadystatechange = function()
          {
            if (XMLHttpRequestObject.readyState == 4 &&
              XMLHttpRequestObject.status == 200) {
                obj.innerHTML = XMLHttpRequestObject.responseText;
            }
          }
          XMLHttpRequestObject.send(null);
        }
        checkpagina(o);
      }

      function checkpagina(url)
      {
	document.getElementById("page").innerHTML="<table id='tblpage' align='left' width='100%' height='100%'><tr> <td id='pagefield' class='td2class' align='left' width='50%' height='33%'>"+url+"</td></tr></table>";
	currentpage = url;
      }

      function SwitchLang(lang)
      {
	newpage = currentpage.replace(language,lang);
        var d=new Date();
        var pars='&t='+d.getFullYear()+d.getMonth()+d.getDay()+d.getHours()+d.getDay()+d.getSeconds();
        urlo = newpage +'?' + pars;
        url = newpage;
        SwitchPage(urlo,url,currentdiv);
	language=lang;
	if (language=='fr'){
		document.getElementById('tab1').style.backgroundImage = 'url(menu_fr_home.jpg)';
		document.getElementById('tab2').style.backgroundImage = 'url(menu_fr_oracle.jpg)';
		document.getElementById('tab3').style.backgroundImage = 'url(menu_fr_web.jpg)';
		document.getElementById('tab4').style.backgroundImage = 'url(menu_fr_software.jpg)';
		document.getElementById('tab5').style.backgroundImage = 'url(menu_fr_pc.jpg)';
		document.getElementById('tab6').style.backgroundImage = 'url(menu_fr_psycho.jpg)';
		document.getElementById('tab7').style.backgroundImage = 'url(menu_fr_contact.jpg)';
		document.getElementById('tab8').style.backgroundImage = 'url(menu_fr_links.jpg)';
	}
        if (language=='nl'){
                document.getElementById('tab1').style.backgroundImage = 'url(menu_nl_home.jpg)';
                document.getElementById('tab2').style.backgroundImage = 'url(menu_nl_oracle.jpg)';
                document.getElementById('tab3').style.backgroundImage = 'url(menu_nl_web.jpg)';
                document.getElementById('tab4').style.backgroundImage = 'url(menu_nl_software.jpg)';
                document.getElementById('tab5').style.backgroundImage = 'url(menu_nl_pc.jpg)';
                document.getElementById('tab6').style.backgroundImage = 'url(menu_nl_psycho.jpg)';
                document.getElementById('tab7').style.backgroundImage = 'url(menu_nl_contact.jpg)';
                document.getElementById('tab8').style.backgroundImage = 'url(menu_nl_links.jpg)';
        }
        if (language=='en'){
                document.getElementById('tab1').style.backgroundImage = 'url(menu_en_home.jpg)';
                document.getElementById('tab2').style.backgroundImage = 'url(menu_en_oracle.jpg)';
                document.getElementById('tab3').style.backgroundImage = 'url(menu_en_web.jpg)';
                document.getElementById('tab4').style.backgroundImage = 'url(menu_en_software.jpg)';
                document.getElementById('tab5').style.backgroundImage = 'url(menu_en_pc.jpg)';
                document.getElementById('tab6').style.backgroundImage = 'url(menu_en_psycho.jpg)';
                document.getElementById('tab7').style.backgroundImage = 'url(menu_en_contact.jpg)';
                document.getElementById('tab8').style.backgroundImage = 'url(menu_en_links.jpg)';
        }
      }

      function Checkform()
      {
	code=document.getElementById('vercode2').innerHTML;
	i=document.getElementById('onderwerp').selectedIndex;
	j=document.getElementById('aanspreking').selectedIndex;
	o=document.getElementById('onderwerp').options[i].text;
	a=document.getElementById('aanspreking').options[j].text;
	velden=2;
	if(language=='nl'){ url2="contact_nl.php";}
	if(language=='fr'){ url2="contact_fr.php";}
	if(language=='en'){ url2="contact_en.php";}
	url2=url2+"?o="+o;
	url2=url2+"&a="+a;
	if ( ! document.getElementById('naam').value){
		url2=url2+"&n=0";
        }
        else
        {
                velden = velden + 1;
		n=document.getElementById('naam').value;
		url2=url2+"&n="+n;
        }
	if ( ! document.getElementById('voornaam').value){
		url2=url2+"&v=0"; 
        }
        else
        {
                velden = velden + 1;
		v=document.getElementById('voornaam').value;
		url2=url2+"&v="+v;
        }
	if ( ! document.getElementById('firma').value){
		url2=url2+"&f=0"; 
        }
        else
        {
                velden = velden + 1;
		f=document.getElementById('firma').value;
                url2=url2+"&f="+f;
        }
	if ( ! document.getElementById('email').value){
		url2=url2+"&e=0"; 
        }
        else
        {
                velden = velden + 1;
		e=document.getElementById('email').value;
                url2=url2+"&e="+e;
        }
	if ( ! document.getElementById('question').value){
		url2=url2+"&q=0"; 
        }
        else
        {
                velden = velden + 1;
		q=document.getElementById('question').value;
                url2=url2+"&q="+q;
        }
	if ( ! document.getElementById('vercode').value){
		url2=url2+"&c=0"; 
        }
        else
        {
                velden = velden + 1;
		c=document.getElementById('vercode').value;
		url2=url2+"&c="+c;
		if ( c == code) { code = "juist"; }
		else { 
			url2=url2+"&c=1"; 
		}
        }
	if ( velden == 8 && code == "juist") 
	{ 
		var d=new Date();
                var pars='&t='+d.getFullYear()+d.getMonth()+d.getDay()+d.getHours()+d.getDay()+d.getSeconds();
		if(language=='nl'){ url2 = "sendmail_nl.php"+"?o="+o+"+&a="+a+"+&n="+n+"&v="+v+"&f="+f+"&e="+e+"&q="+q + pars;}
		if(language=='fr'){ url2 = "sendmail_fr.php"+"?o="+o+"+&a="+a+"+&n="+n+"&v="+v+"&f="+f+"&e="+e+"&q="+q + pars;}
		if(language=='en'){ url2 = "sendmail_en.php"+"?o="+o+"+&a="+a+"+&n="+n+"&v="+v+"&f="+f+"&e="+e+"&q="+q + pars;}
                if(language=='nl'){ url = 'contact_nl.php';}
                if(language=='fr'){ url = 'contact_fr.php';}
                if(language=='en'){ url = 'contact_en.php';}
                getHoofdpagina(url2,url,'ContactDiv');
                currentdiv = 'ContactDiv';
	}
	else
	{
        	var d=new Date();
        	var pars='&t='+d.getFullYear()+d.getMonth()+d.getDay()+d.getHours()+d.getDay()+d.getSeconds();
        	url2 = url2 + '&err=1' + pars;
        	if(language=='nl'){ url = 'contact_nl.php';}
        	if(language=='fr'){ url = 'contact_fr.php';}
        	if(language=='en'){ url = 'contact_en.php';}
        	getHoofdpagina(url2,url,'ContactDiv');
        	currentdiv = 'ContactDiv';
	}
      }	

      function Selectlinkarea()
      {
	i=document.getElementById('area').selectedIndex;
	o=document.getElementById('area').options[i].text;
        var d=new Date();
        var pars='&t='+d.getFullYear()+d.getMonth()+d.getDay()+d.getHours()+d.getDay()+d.getSeconds();
        url2 = 'links2.php' + '?area='+o + pars;
        if(language=='nl'){ url = 'links_nl.php';}
        if(language=='fr'){ url = 'links_fr.php';}
        if(language=='en'){ url = 'links_en.php';}
        getHoofdpagina(url2,url,'linksdetail');
        currentdiv = 'LinkDiv';
      }