var preloadFlag = false;
    
    function preloadImages() 
    {
        if (document.images) {
	        pre__01_men_kontakt_high = newImage('../bilder/bilder-start/01-men-kontakt-high.jpg');
	        pre__02_men_service_high = newImage('../bilder/bilder-start/02-men-service-high.jpg');
	        pre__04_men_bezirk_high = newImage('../bilder/bilder-start/04-men-bezirk-high.jpg');
	        pre__05_men_vorstand_high = newImage('../bilder/bilder-start/05-men-vorstand-high.jpg');
	        pre__06_men_geschaeftstelle_high = newImage('../bilder/bilder-start/06-men-geschaeftstelle-high.jpg');
	        pre__08_men_intern_high = newImage('../bilder/bilder-start/08-men-intern-high.jpg');
	        pre__09_men_intern_high = newImage('../bilder/bilder-start/09-men-uebersicht-high.jpg');
	        pre__10_men_impressum_high = newImage('../bilder/bilder-start/10-men-impressum-high.jpg');
	        
	        pre__01_men_kontakt = newImage('../bilder/bilder-start/01-prev-kontakt.jpg');
	        pre__02_men_service = newImage('../bilder/bilder-start/02-prev-service.gif');
	        pre__04_men_bezirk = newImage('../bilder/bilder-start/04-prev-kammerbezirk.jpg');
	        pre__05_men_vorstand = newImage('../bilder/bilder-start/05-prev-vorstand.jpg');
	        pre__06_men_geschaeftstelle = newImage('../bilder/bilder-start/06-prev-geschaeftstelle.jpg');
	        pre__08_men_intern = newImage('../bilder/bilder-start/08-prev-intern.jpg');
	        pre__09_men_intern = newImage('../bilder/bilder-start/09-prev-uebersicht.jpg');
	        pre__10_men_impressum = newImage('../bilder/bilder-start/10-prev-impressum.jpg');
	        
	        preloadFlag = true;
        }
    }
    
    function fnChangeAction(navitem, actiontype, resizeimage, replaceimage, rereplaceimage)
    {
        
        //navitem: id fuer navigationspunkt
        //actiontype: 1=mouseover, 2=mouseout
        //resizeimage: 1=no, 2=yes
        //replaceimage: "" or link
        //rereplaceimage: "" or link
        
        if (navitem == "kontakt")
        {
            fnChangeInternal('_01_men_kontakt','bilder/bilder-start/01-men-kontakt.jpg','bilder/bilder-start/01-men-kontakt-high.jpg','bilder/bilder-start/01-men-kontakt-dim.jpg','bilder/bilder-start/01-prev-kontakt.jpg',actiontype, resizeimage, replaceimage, rereplaceimage)
        }
        else if (navitem == "service")
        {
            fnChangeInternal('_02_men_service','bilder/bilder-start/02-men-service.jpg','bilder/bilder-start/02-men-service-high.jpg', 'bilder/bilder-start/02-men-service-dim.jpg','bilder/bilder-start/02-prev-service.gif',actiontype, resizeimage, replaceimage, rereplaceimage)
        }
        else if (navitem == "3leer")
        {
            fnChangeInternal('_03_men_leer','bilder/bilder-start/03-men-leer.jpg','bilder/bilder-start/03-men-leer.jpg','bilder/bilder-start/03-men-leer.jpg','bilder/00-prev-leer.jpg',actiontype, resizeimage, replaceimage, rereplaceimage)
        }
        else if (navitem == "bezirk")
        {
            fnChangeInternal('_04_men_bezirk','bilder/bilder-start/04-men-bezirk.jpg','bilder/bilder-start/04-men-bezirk-high.jpg','bilder/bilder-start/04-men-bezirk-dim.jpg','bilder/bilder-start/04-prev-kammerbezirk.jpg',actiontype, resizeimage, replaceimage, rereplaceimage)
        }
        else if (navitem == "vorstand")
        {
            fnChangeInternal('_05_men_vorstand','bilder/bilder-start/05-men-vorstand.jpg','bilder/bilder-start/05-men-vorstand-high.jpg','bilder/bilder-start/05-men-vorstand-dim.jpg','bilder/bilder-start/05-prev-vorstand.jpg',actiontype, resizeimage, replaceimage, rereplaceimage)
        }
        else if (navitem == "geschaeftstelle")
        {
            fnChangeInternal('_06_men_geschaeftstelle','bilder/bilder-start/06-men-geschaeftstelle.jpg','bilder/bilder-start/06-men-geschaeftstelle-high.jpg','bilder/bilder-start/06-men-geschaeftstelle-dim.jpg','bilder/bilder-start/06-prev-geschaeftstelle.jpg',actiontype, resizeimage, replaceimage, rereplaceimage)
        }
        else if (navitem == "7leer")
        {
            fnChangeInternal('_07_men_leer','bilder/bilder-start/07-men-leer.jpg','bilder/bilder-start/07-men-leer.jpg','bilder/bilder-start/07-men-leer.jpg','bilder/00-prev-leer.jpg',actiontype, resizeimage, replaceimage, rereplaceimage)
        }
        else if (navitem == "intern")
        {
            fnChangeInternal('_08_men_intern','bilder/bilder-start/08-men-intern.jpg','bilder/bilder-start/08-men-intern-high.jpg','bilder/bilder-start/08-men-intern-dim.jpg','bilder/bilder-start/08-prev-intern.jpg',actiontype, resizeimage, replaceimage, rereplaceimage)
        }
        else if (navitem == "uebersicht")
        {
            fnChangeInternal('_09_men_uebersicht','bilder/bilder-start/09-men-uebersicht.jpg','bilder/bilder-start/09-men-uebersicht-high.jpg','bilder/bilder-start/09-men-uebersicht-dim.jpg','bilder/bilder-start/09-prev-uebersicht.jpg',actiontype, resizeimage, replaceimage, rereplaceimage)
        }
        else if (navitem == "impressum")
        {
            fnChangeInternal('_10_men_impressum','bilder/bilder-start/10-men-impressum.jpg','bilder/bilder-start/10-men-impressum-high.jpg','bilder/bilder-start/10-men-impressum-dim.jpg','bilder/bilder-start/10-prev-impressum.jpg',actiontype, resizeimage, replaceimage, rereplaceimage)
        }
        else if (navitem == "home")
        {
            fnChangeInternal('_11_men_home','bilder/bilder-start/11-men-home.png','bilder/bilder-start/11-men-home-high.jpg','bilder/bilder-start/11-men-home-dim.jpg','',actiontype, resizeimage, replaceimage, rereplaceimage)
        }
  
    
    }
    
    function fnChangeInternal(idnavi, linknavinormal, linknavihigh, linknavisel, linkpreview, actiontype, resizeimage, replaceimage, rereplaceimage)
    {
    
            if (actiontype==1)
            {
                changeImages(idnavi,linknavihigh);
                if (resizeimage==2) {document.getElementById('Ebene2').style.width="586px";}
                if (linkpreview != "")
                {
                    document.getElementById('Ebene4').style.visibility="visible";
                    document.getElementById('Ebene6').style.backgroundImage="url(" + linkpreview + ")";
                }
                if (replaceimage != "") {document.getElementById('Ebene2').style.backgroundImage="url(" + replaceimage + ")";}
            }
            else
            {
                if (actiontype==2)
                {
                    changeImages(idnavi,linknavinormal);
                }
                else if (actiontype==3)
                {
                    changeImages(idnavi,linknavisel);
                }
                if (resizeimage==2) {document.getElementById('Ebene2').style.width="763px";}
                document.getElementById('Ebene4').style.visibility="hidden";
                document.getElementById('Ebene6').style.backgroundImage="none";
                if (rereplaceimage != "") {document.getElementById('Ebene2').style.backgroundImage="url(" + rereplaceimage + ")";}
            }
    
    }
    
   
   
   
   function fnChangeImage(id, link)
    {
        document.getElementById(id).style.backgroundImage="url(" + link + ")";
    }
    function fnChangeImageSource(id, link)
    {
        document.getElementById(id).src= link ;
    }
    function fnChangeText(id, text)
    {
        document.getElementById(id).innerHTML=text;
    }