function melerrep(){
   b=Math.floor(Math.random()*2)+1;
   if(prisrep[b]==1){melerrep();}
   prisrep[b]=1;
   return b;
}
nbq=290;
for(l=0;l<=nbq+1;l++){pris[l]=0;}
function meler(){
   a=Math.floor(Math.random()*nbq)+1;
   if(pris[a]==1){meler();}
   pris[a]=1;
   return a;
}

function debut(){
   nberreur=0;nbquestiontotal=0;
     document.laforme["motrendu"].value= "Cet exercice contient " + nbq + " mots.";
   document.getElementById('bouton').style.visibility="hidden";
   for(l=1;l<11;l++){document.laforme["rep"+l+"4"].value="";}

   for(l=1;l<=nbq;l++){qpris[l]=0;pris[l]=0;}
   nombrequestionpris=0;
   for(l=1;l<=nbq;l++){
      a=meler();q[l]=dq[a]; rep[l]=dr1[a];descr[l]=ddescr[a];
       for(ll=1;ll<3;ll++){prisrep[ll]=0;}
       reptemp[1]=dr1[a];reptemp[2]=dr2[a];
       b=melerrep();r1[l]=reptemp[b];
       b=melerrep();r2[l]=reptemp[b];
   }

   for(l=1;l<=10;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+"1"].style.color= "blue";
     document.laforme["rep"+l+"2"].style.color= "blue";
    document.laforme["im"+l].title=descr[l];
     if(descr[l]!=""){document.laforme["im"+l].src="expl.gif";}

   }
}
function autresmots(){
    
       if(revision==1){pourreviser();return;}
       if(nbquestiontotal>=nbq && nberreur==0){debut();return;}
   for(l=1;l<=10;l++){qpris[l]=0; }
       document.getElementById('bouton').style.visibility="hidden";
       nombrequestionpris=0; 
  if(nberreur==0){
        rendu=rendu+10; 
       if((rendu+l)<(nbq+10)){
           for(l=1;l<=10;l++){
               document.laforme["rendu"+l].value=l+rendu;
               document.laforme["q"+l].value=q[l+rendu];
               document.laforme["rep"+l+"1"].value=r1[l+rendu];
               document.laforme["rep"+l+"2"].value=r2[l+rendu];
               document.laforme["rep"+l+"1"].style.color= "blue";
               document.laforme["rep"+l+"2"].style.color= "blue";
               document.laforme["rep"+l+"4"].value="";
              document.laforme["im"+l].title=descr[l+rendu];
              if(descr[l+rendu]!=""){document.laforme["im"+l].src="expl.gif";}else{document.laforme["im"+l].src="vide.gif";}
          }
       }  
       
 }
 else{
      nberreur=0;
      for(l=1;l<=10;l++){
            
               document.laforme["rendu"+l].value=l+rendu;
               document.laforme["q"+l].value=q[l+rendu];
               document.laforme["rep"+l+"1"].value=r1[l+rendu];
               document.laforme["rep"+l+"2"].value=r2[l+rendu];
               document.laforme["rep"+l+"1"].style.color= "blue";
               document.laforme["rep"+l+"2"].style.color= "blue";
               document.laforme["rep"+l+"4"].value="";
               document.laforme["im"+l].title=descr[l+rendu];
               if(descr[l+rendu]!=""){document.laforme["im"+l].src="expl.gif";}
          }

    }

}

function pourreviser(){
      for(l=1;l<=10;l++){qpris[l]=0; }
       document.getElementById('bouton').style.visibility="hidden";
       nombrequestionpris=0; nberreur=0;
           for(l=1;l<=10;l++){
           item=reterreur[l];   larep[l]=rep[item];
                
            for(ll=1;ll<3;ll++){prisrep[ll]=0;}
            reptemp[1]=r1[item];reptemp[2]=r2[item];
            b=melerrep();r1[item]=reptemp[b];
            b=melerrep();r2[item]=reptemp[b];

              document.laforme["rendu"+l].value="";
               document.laforme["q"+l].value=q[item];
               document.laforme["rep"+l+"1"].value=r1[item];
               document.laforme["rep"+l+"2"].value=r2[item];
               document.laforme["rep"+l+"1"].style.color= "blue";
               document.laforme["rep"+l+"2"].style.color= "blue";
               document.laforme["rep"+l+"4"].value="";
              document.laforme["im"+l].title=descr[item];
              if(descr[l+rendu]!=""){document.laforme["im"+l].src="expl.gif";}else{document.laforme["im"+l].src="vide.gif";}
          }
   

}


rendu=0;
for(l=1;l<400;l++){pris[l]=0;}
debut();