function melerrep(){
   b=Math.floor(Math.random()*nbreponse)+1;
   if(prisrep[b]==1){melerrep();}
   prisrep[b]=1;
   return b;
}

function meler(){
   a=Math.floor(Math.random()*nbq)+1;
   if(pris[a]==1){meler();}
   pris[a]=1;
   return a;
}

function debut(){
   document.getElementById('bouton').style.visibility="hidden";
   document.getElementById('choisissez').style.visibility="visible";
   for(l=1;l<=nbq;l++){pris[l]=0;}
   for(l=1;l<nbq;l++){qpris[l]=0;}
   nombrequestionpris=0;
   for(l=1;l<nbq;l++){
       a=meler();q[l]=dq[a];lexpl[l]=dlexpl[a];rep[l]=dr1[a];
       for(ll=1;ll<4;ll++){prisrep[ll]=0;}
       reptemp[1]=dr1[a];reptemp[2]=dr2[a];reptemp[3]=dr3[a];
       if(reptemp[3]==""){nbreponse=2;}else{nbreponse=3;}
       b=melerrep();r1[l]=reptemp[b];
       b=melerrep();r2[l]=reptemp[b];
       if(nbreponse==3){b= melerrep();r3[l]=reptemp[b];}else{r3[l]="";}
   }

   for(l=1;l<=5;l++){
     document.laforme["q"+l].value=q[l];
     document.laforme["rep"+l+"1"].value= r1[l];
     document.laforme["rep"+l+"2"].value= r2[l];
     document.laforme["rep"+l+"3"].value= r3[l];
     document.laforme["rep"+l+"1"].style.color= "blue";
     document.laforme["rep"+l+"2"].style.color= "blue";
     document.laforme["rep"+l+"3"].style.color= "blue";
     document.laforme["expl"+l].value="";
   }
}
if(nbq>0){debut();}else{nbqq=0;}