function move(dirn){

   if (wasteTime){

     wasteTime=false;

     if (dirn!=pDir) myPerson.src=dirn+".jpg";

     var i;

     nx=0; ny=0;

     var image1,image2;

     if (dirn=="up") ny = -1;

     if (dirn=="dn") ny = 1;

     if (dirn=="lf") nx = -1;

     if (dirn=="rt") nx = 1;

     if ((posX+nx>maxX)||(posX+nx<0)) nx=0;

     if ((posY+ny>maxY)||(posY+ny<0)) ny=0;

     if (sol[posX+nx][posY+ny]==1) {

      nx=0;  

   ny=0;

     }

     posX+=nx; posY+=ny;

     nx*=step; ny*=step;

     addT="1";

     mainD=dirn;

     anim();

   }

}

  
function anim(){

   picX = picX + nx;  

   picY = picY + ny;

   myPerson.src=mainD+addT+".jpg";

   myPos.style.left = picX;

   myPos.style.top = picY;

   if (addT!=""){

     if (addT=="1") addT="";

     setTimeout( 'anim();', speed );

   } else wasteTime=true;

}