var str;
var val11;var val12;var val13;
var val21;var val22;var val23;

var s;
OK=false;
function myDate (){current = new Date( ); s = current.toString( );return s}

function setValToNull (){
val11=0;val12=0;val13=0;val21=0;val22=0;val23=0;
return true}

function sum () {
return val11+val12+val13+val21+val22+val23;}


function check() {
if (sum()==0) {alert('Die Fragen sind nicht  beantwortet !');return false};
if (sum()==1) {alert('Bitte beantworten Sie beide Fragen !');return false};
return true}


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