function ladenImages()
{
	var Anzahl = ladenImages.arguments.length;
	var preImg = new Array();
		for (i=0;i<Anzahl;i++)	{preImg[i] = new Image;
			preImg[i].src = ladenImages.arguments[i];
}
	}
function Bildwechsel(BildName,BildNeu,Ebene)
{	if (Ebene == 0)	eval("document."+BildName+".src = 'images/"+BildNeu+".gif'");
	if (Ebene == 1)	eval("document."+BildName+".src = '../images/"+BildNeu+".gif'");
}

function chkFormular(){
   if(document.Formular.Nachname.value == "")
   {
      alert("Bitte geben Sie Ihren Nachnamen ein!");
	document.Formular.Nachname.focus();
   return false;
	}
   if(document.Formular.Telefon.value == "")
   {
      alert("Bitte geben Sie Ihre Telefonnummer ein!!");
       	document.Formular.Telefon.focus();
   return false;
   }
}

function fenster(seite) 
{
	switch (seite)
	{
	case 0: window.open("popup-haftung.html","fenster","width=500,height=240");
        break;
	case 1: window.open("popup-preis.html","fenster","width=740,height=590");
        break;
	case 2: window.open("popup-dienstleistungsforum1.html","fenster","width=380,height=480");
        break;
	case 3: window.open("popup-dienstleistungsforum2.html","fenster","width=380,height=530");
        break;	
	case 4: window.open("popup-dienstleistungsforum3.html","fenster","width=380,height=530");
        break;	
	case 5: window.open("popup-dienstleistungsforum4.html","fenster","width=380,height=530");
        break;	
	case 6: window.open("popup-dienstleistungsforum5.html","fenster","width=380,height=530");
        break;	
	case 7: window.open("popup-dienstleistungsforum6.html","fenster","width=380,height=530");
        break;	
	case 8: window.open("popup-dienstleistungsforum7.html","fenster","width=380,height=530");
        break;	
	case 9: window.open("popup-dienstleistungsforum8.html","fenster","width=380,height=530");
        break;	
	case 10: window.open("popup-dienstleistungsforum9.html","fenster","width=380,height=530");
        break;
	case 11: window.open("popup-technikfest.html","fenster","width=500,height=380");
        break;
	case 12: window.open("popup-gebauede5-obergeschoss.html","test","width=780,height=440");
        break;
	}
}



function fenster1(winname,wintitel,breite,hoehe) {
	var links=screen.width/2-breite/2;
	var oben=screen.height/2-hoehe/2;
	NewWin = window.open(winname, wintitel, "width="+breite+",height="+hoehe+",top="+oben+",left="+links+",toolbar=0,location=0");
}