var m_activeField = null;

	function autoJump_OnKeyDown(curField)
	{
		m_activeField = curField;
		curField.lastValue = curField.value;
	}

	function autoJump_OnKeyUp(curField,nextFieldName,maxLength)
	{
		if( curField == m_activeField && curField.value != curField.lastValue && curField.value.length >= maxLength )
		{
		  var nextField = document.getElementById(nextFieldName);
		  nextField.focus();
		}

		m_activeField = null;
	}