function newElem(myT) {
var newI = document.createElement("LI");
newI.innerHTML = myT;
return newI;
}
function function1(form) {
var newI = newElem(form.enter.value);
var fLi = document.getElementById("myL").firstChild;
document.getElementById("myL").replaceChild(newI, fLi);
}
function function2(form) {
var newI = newElem(form.enter.value);
var fLi = document.getElementById("myL").lastChild;
document.getElementById("myL").replaceChild(newI, fLi);
}