var timeTaken;var str;
var val11;var val12;var val13;

var s;
OK=false;
function myDate (){current = new Date( ); s = current.toString( );return s}
function setValToNull (){
val11=0;val12=0;val13=0;
return true}

function sum () {
return val11+val12+val13;}




function check() {
if (sum()==0) {alert('Die Frage ist nicht  beantwortet !');return false};
return true}


function doOpen() {
window.location="solution.html";
return 1;
}