#148 IE error in calendar when clicking many times

[svazquez]

When clicking many times on the up/down button of the year in the calendar, the Internet Explorer closes whith error.
https://ebankinter.pre.bankinter.bk/www/es-es/cgi/ebk+opr+cuentas_saldos_mov and
https://broker.pre.bankinter.bk/www/es-es/cgi/broker+compraventa_val
Setting low priority, because it is a known bug in standby.