function displayfeat1(){
   document.getElementById("feat1").style.display="";
   document.getElementById("feat2").style.display="none";
   document.getElementById("feat3").style.display="none";
   document.getElementById("feat4").style.display="none";
   document.getElementById("feat5").style.display="none";
   document.getElementById("feat6").style.display="none";
   document.getElementById("feat7").style.display="none";
   document.getElementById("feat8").style.display="none";
   document.getElementById("feat9").style.display="none";
}
function displayfeat2(){
   document.getElementById("feat1").style.display="none";
   document.getElementById("feat2").style.display="";
   document.getElementById("feat3").style.display="none";
   document.getElementById("feat4").style.display="none";
   document.getElementById("feat5").style.display="none";
   document.getElementById("feat6").style.display="none";
   document.getElementById("feat7").style.display="none";
   document.getElementById("feat8").style.display="none";
   document.getElementById("feat9").style.display="none";
}
function displayfeat3(){
   document.getElementById("feat1").style.display="none";
   document.getElementById("feat2").style.display="none";
   document.getElementById("feat3").style.display="";
   document.getElementById("feat4").style.display="none";
   document.getElementById("feat5").style.display="none";
   document.getElementById("feat6").style.display="none";
   document.getElementById("feat7").style.display="none";
   document.getElementById("feat8").style.display="none";
   document.getElementById("feat9").style.display="none";
}
function displayfeat4(){
   document.getElementById("feat1").style.display="none";
   document.getElementById("feat2").style.display="none";
   document.getElementById("feat3").style.display="none";
   document.getElementById("feat4").style.display="";
   document.getElementById("feat5").style.display="none";
   document.getElementById("feat6").style.display="none";
   document.getElementById("feat7").style.display="none";
   document.getElementById("feat8").style.display="none";
   document.getElementById("feat9").style.display="none";
}
function displayfeat5(){
   document.getElementById("feat1").style.display="none";
   document.getElementById("feat2").style.display="none";
   document.getElementById("feat3").style.display="none";
   document.getElementById("feat4").style.display="none";
   document.getElementById("feat5").style.display="";
   document.getElementById("feat6").style.display="none";
   document.getElementById("feat7").style.display="none";
   document.getElementById("feat8").style.display="none";
   document.getElementById("feat9").style.display="none";
}
function displayfeat6(){
   document.getElementById("feat1").style.display="none";
   document.getElementById("feat2").style.display="none";
   document.getElementById("feat3").style.display="none";
   document.getElementById("feat4").style.display="none";
   document.getElementById("feat5").style.display="none";
   document.getElementById("feat6").style.display="";
   document.getElementById("feat7").style.display="none";
   document.getElementById("feat8").style.display="none";
   document.getElementById("feat9").style.display="none";
}
function displayfeat7(){
   document.getElementById("feat1").style.display="none";
   document.getElementById("feat2").style.display="none";
   document.getElementById("feat3").style.display="none";
   document.getElementById("feat4").style.display="none";
   document.getElementById("feat5").style.display="none";
   document.getElementById("feat6").style.display="none";
   document.getElementById("feat7").style.display="";
   document.getElementById("feat8").style.display="none";
   document.getElementById("feat9").style.display="none";
}
function displayfeat8(){
   document.getElementById("feat1").style.display="none";
   document.getElementById("feat2").style.display="none";
   document.getElementById("feat3").style.display="none";
   document.getElementById("feat4").style.display="none";
   document.getElementById("feat5").style.display="none";
   document.getElementById("feat6").style.display="none";
   document.getElementById("feat7").style.display="none";
   document.getElementById("feat8").style.display="";
   document.getElementById("feat9").style.display="none";
}
function displayfeat9(){
   document.getElementById("feat1").style.display="none";
   document.getElementById("feat2").style.display="none";
   document.getElementById("feat3").style.display="none";
   document.getElementById("feat4").style.display="none";
   document.getElementById("feat5").style.display="none";
   document.getElementById("feat6").style.display="none";
   document.getElementById("feat7").style.display="none";
   document.getElementById("feat8").style.display="none";
   document.getElementById("feat9").style.display="";
}