i tried using .net text bos and having javascript code for numeric entries and also autotab to next text box but was having prbs. so i downloaded the numeric text box frm http://www.excentricsworld.com/ then i tried to implement 'autotab' with

and


<script LANGUAGE="JavaScript">


var isNN = (navigator.appName.indexOf("Netscape")!=-1);
function autoTab(input,len, e)
{
	var keyCode = (isNN) ? e.which : e.keyCode;
	var filter = (isNN) ? [0,8,9] : [0,8,9,16,17,18,37,38,39,40,46];
	if(input.value.length >= len && !containsElement(filter,keyCode))
	{
	input.value = input.value.slice(0, len);
	input.form[(getIndex(input)+1) % input.form.length].focus();
	}


function containsElement(arr, ele)
	{
	var found = false, index = 0;
	while(!found && index < arr.length)
	if(arr[index] == ele)
	found = true;
	else
	index++;
	return found;
	}


function getIndex(input)
	{
	var index = -1, i = 0, found = false;
	while (i < input.form.length && index == -1)
	if (input.form[i] == input)
		index = i;
	else i++;
	return index;
	}


return true;
}




function KeyCheck(myfield,e)
{
var keycode;
if (window.event) keycode = window.event.keyCode;
else if (e) keycode = e.which;
else return true;
if (((keycode>47) && (keycode<58) )  || (keycode==8)) { return true; }
else return false;
}


//  End -->
</script>

the same code works fine with regular .NET text box when i can tab to next text box but it doesnt work on this control. so how do i go abt it . thanks.