function moveit(){
 // 1.2 supposes 80% is a pass on the test, we get an even race
  racefactor=score/maxterms*1.2+.1  
  if(theirpos>25 && yourpos>25)
         {theirpos=theirpos-5;
          yourpos=yourpos-Math.ceil(Math.random()*9*racefactor);
          document.getElementById('fly1').style.top=yourpos;
          document.getElementById('fly2').style.top=theirpos;
          setTimeout('moveit()',75);  }
  else{whowon()}
}
function whowon(){ //get position and strip off px
  monkey1=document.getElementById('fly1').style.top
  monkey1=monkey1.substring(0,monkey1.length-2)
  monkey2=document.getElementById('fly2').style.top
  monkey2=monkey2.substring(0,monkey2.length-2)
  if(eval(monkey1)<eval(monkey2))
          {alert('You Won ')}
  else {alert('You Lost')}
 // reset monkey positions
  document.getElementById('fly1').style.top=startpos 
  document.getElementById('fly2').style.top=startpos 
//reset loop
  yourpos=startpos 
  theirpos=startpos 
}