Javascript keyboard operation

var keyboardfocuskey;
var keylist=[1,2,3,4,5];

var currentFocusedKey=1;
//input fragment

function findElementWithKey( keyboardfocuskey ){

return element ;

}

function focusOnElement( element ){

}

function onEnterEvent(){

newFocusedKey= currentFocusedKey + 1;

if(newFocusedKey == keylist.length){
focusOnElement( findElementWithKey( newFocusedKey ) );
}else if( newFocusedKey == keylist.length ){
focusOnElement( findElementWithKey( newFocusedKey ) );
}else{
newFocusedKey = 1;
focusOnElement( findElementWithKey( newFocusedKey ) );
}

}

functoin onShiftEnterEvent(){

newFocusedKey = currentFocusedKey – 1;

focusOnElement( findElementWithKey( newFocusedKey ) );

}