Need to remove special reserved characters in form fields?
Here you go - setup your field like this:
onBlur="var val = form.CurrentMonth.value; if (val) form.CurrentMonth.value=val.replace(\\$|,|@|#|~|`|\%|\*|\^|\\&|\(|\)|\+|\=|\[|\-|\_|\]|\[|\}|\{|\;|\:|\\'|\<|\>|\?|\||\\\|\!|\\$|\./g,\'\')