function BilderLaden()
	{if(window.document.images)
		{bild27=new Image();
		 bild27.src="images/layout/layout_25.gif";
		 bild28=new Image();
		 bild28.src="images/layout/over_25.gif";
		 
		 bild29=new Image();
		 bild29.src="images/layout/layout_26.gif";
		 bild30=new Image();
		 bild30.src="images/layout/over_26.gif";
		 
		 bild31=new Image();
		 bild31.src="images/layout/layout_27.gif";
		 bild32=new Image();
		 bild32.src="images/layout/over_27.gif";
		 
		 bild33=new Image();
		 bild33.src="images/layout/layout_28.gif";
		 bild34=new Image();
		 bild34.src="images/layout/over_28.gif";
		 
		 bild35=new Image();
		 bild35.src="images/layout/layout_29.gif";
		 bild36=new Image();
		 bild36.src="images/layout/over_29.gif";
		 
		 bild37=new Image();
		 bild37.src="images/layout/layout_30.gif";
		 bild38=new Image();
		 bild38.src="images/layout/over_30.gif";
		 
		 bild39=new Image();
		 bild39.src="images/layout/layout_31.gif";
		 bild40=new Image();
		 bild40.src="images/layout/over_31.gif";
		 
		 bild41=new Image();
		 bild41.src="images/layout/layout_32.gif";
		 bild42=new Image();
		 bild42.src="images/layout/over_32.gif";
		 
		 bild43=new Image();
		 bild43.src="images/layout/layout_33.gif";
		 bild44=new Image();
		 bild44.src="images/layout/over_33.gif";
		 
		 bild45=new Image();
		 bild45.src="images/layout/layout_35.gif";
		 bild46=new Image();
		 bild46.src="images/layout/over_35.gif";
		 
		 bild1=new Image();
		 bild1.src="images/mitmachen/mitmachen_11.gif";
		 bild2=new Image();
		 bild2.src="images/mitmachen/mitmachen_over_11.gif";
		 
		 bild3=new Image();
		 bild3.src="images/mitmachen/mitmachen_12.gif";
		 bild4=new Image();
		 bild4.src="images/mitmachen/mitmachen_over_12.gif";
		 }}

function Wexeln(Bildnummer, Bilddatei)
	{window.document.images[Bildnummer].src=Bilddatei.src;}
	
function checkformular(){
	var checked = true;
	
	var vorname = document.sendform.vorname.value;
	if (vorname.length==0){
		checked = false;
	}
	var nachname = document.sendform.nachname.value;
	if (nachname.length==0){
		checked = false;
	}
	var re_email = /^([_a-zA-Z0-9-]+)(\.[_a-zA-Z0-9-]+)*@([a-zA-Z0-9-]+\.)+([a-zA-Z]{2,3})$/;
	var email = document.sendform.email.value;
	if ((re_email.test(email))==false || email.length==0){
		checked = false;
	}
	
	if(checked){
		document.sendform.method = "post";
		document.sendform.action = "mitmachen.php";
		document.sendform.submit();
	}
	else{
		top.location.href = "mitmachen.php?f=1";
	}
	return checked;
}