function getpos(obj)
{
  return document.selection.createRange().move('character', (obj.value.length+1)* -1 )*-1;
}
function SetCursorToPos(field,pos)
{
  var varRange = document.selection.createRange();
  varRange.move('character', (field.value.length+1)* -1 );
  varRange.move('character', pos);
  varRange.select();
}