sent=false;
function check(){
if (sent){alert("Your data has already been sent.\nPlease wait for response from the server!");return false;}
proof=new Array();

proof[00]=new Array("email",/@/,"Please tell us your email adress!");
proof[01]=new Array("nachricht",/[a-zA-Z]+/,"Type in a message!");


for (var i=0;i<proof.length;i++){

if (!isNaN(proof[i][1])){
if(!proof[i][1]==document.forms[0][proof[i][0]].checked){
	alert(proof[i][2]);
	document.forms[0][proof[i][0]].focus();
	return false;}	
}
else{
if(proof[i][1].test(document.forms[0][proof[i][0]].value)==false){
	alert(proof[i][2]);
	document.forms[0][proof[i][0]].focus();
	return false;}
}}

document.forms[0].submit();
sent==true;
return true;
}
function col(obj) {
  obj.style.backgroundColor = '#aee94f';
  obj.style.color = '#000';

}
function uncol(obj) {
  obj.style.backgroundColor = '#fff';
  obj.style.color = '#000';
}

function chk(el){
var nr=parseInt(el.id.slice(1));
var wert=parseInt(el.value);
for(var i=1;i<=5;i++){
	var wert2=parseInt(document.getElementById('s'+i).value);
	if(i!=nr&&wert2==wert&&wert!=5){
		document.getElementById('s'+i).value=('0'+(wert+1));
		chk(document.getElementById('s'+i));
	}
}
}

function q11Ok(){
for(var w=1;w<=5;w++){
	var found=false;
	for(var i=1;i<=5;i++){
		if(w==parseInt(document.getElementById('s'+i).value))found=true;
	}
	if (!found)return false;
}
return true;
}