// sets cursor to first place in input
function EnableFocusReset (maskedTextBox,iPos)
{
   var field = maskedTextBox.field;
   if (field.attachEvent)
   {
       field.attachEvent('onfocus', function ()
       {
           field.select();
           var s = field.createTextRange();
           s.moveStart("character", iPos);
           s.moveEnd("character", iPos); 
           s.collapse(true);
           s.select();
       });
   }
   else
   {
       field.addEventListener('focus', function (e)
       {
           field.selectionStart = field.selectionEnd = iPos;
           e.preventDefault();
       }, false);
   }
}