<!--

// -------------------------------------------------------------------
// TabNext()
// Function to auto-tab to next field
// Arguments:
//   obj :  The input object (this)
//   event: Either 'up' or 'down' depending on the keypress event
//   len  : Max length of field - tab when input reaches this length
//   next_field: input object to get focus after this one
// -------------------------------------------------------------------
var field_length=0;
function TabNext(obj,event,len,next_field) {
	if (event == "down") {
		field_length=obj.value.length;
	}
	else if (event == "up") {
		if (obj.value.length != field_length) {
			field_length=obj.value.length;
			if (field_length == len) {
				next_field.select();
				next_field.focus();
			}
		}
	}
}



function autoTab(input,len, e) {

var isNN = (navigator.appName.indexOf("Netscape")!=-1);
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)].focus();

	if (autoTab.arguments.length < 4) {
		input.form[(getIndex(input)+1)].select();
	}
	
}

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;
}
//-->