set focus() on textfield in IE problems

Hi

I've read some solutions to my problem on the web, but I'm not able yet to
implent it in my function, can anyone help me out here? I'm trying to get
back the focus on a textfield after closing an alert box, but the focus
jumps to the next textfield. Here's the function:

function ValueChanged(obj, variation){
var ChangedValue = document.getElementById(obj);
var Budget = document.getElementById("Budget" + variation);
var Committed =document.BudgetItem.getElementById("committed" + variation);
var Actual = document.getElementById("actual" + variation);
var Accrual = document.getElementById("accrual" + variation);
var ChangedHidden = document.getElementById("changedValues" + variation);

ActualPlusAccrual = parseFloat(Actual.value) + parseFloat(Accrual.value);

ChangedValue.style.backgroundColor='#ffcc00';
ChangedHidden.value = true;
if(Budget.value - Committed.value < 0){
alert("Committed value can not be greater than the Budget");
Committed.focus();
Committed.select();
return false;
}
if(Budget.value - Actual.value < 0){
alert("Actual value can not be greater than the Budget");
Actual.focus();
Actual.select();
return false;
}
if(Budget.value - Accrual.value <0){
alert("Accrual value can not be greater than the Budget");
Accrual.focus();
Accrual.select();
return false;
}
if(Committed.value - ActualPlusAccrual < 0){
alert("Committed value can not be less than Actual + Accrual");
Committed.focus();
Committed.select();
return false;
}
if(Budget.value - ActualPlusAccrual < 0){
alert("Actual + Accrual can not be greater than the Budget");
Actual.focus();
Actual.select();
return false;
}
}
</script>

In article <Fahcb.131530$rh.11348016 (AT) amsnews03 (DOT) chello.com>, "Marco Alting"
<marco (AT) hotmail (DOT) com> writes:

var ChangedValue = document.getElementById(obj);
var Budget = document.getElementById("Budget" + variation);
var Committed =document.BudgetItem.getElementById("committed" + variation);

Why the above line isn't throwing errors is erroneous and suspicious.

var Actual = document.getElementById("actual" + variation);
var Accrual = document.getElementById("accrual" + variation);
var ChangedHidden = document.getElementById("changedValues" + variation);

Why are you using getElementById to reference a form? use document.forms
notation and set focus at will.
--
Randy