// JavaScript Document // Date Validation Javascript // copyright 30th October 2004, by Stephen Chapman // http://javascript.about.com // You have permission to copy and use this javascript provided that // the content of the script is not changed in any way. function valDateFmt(datefmt) {myOption = -1; for (i=0; i 0) {result += fld.charAt(i); if (fld.charAt(i) != " ") c = result.length;}}return result.substr(0,c);} var numb = '0123456789'; function isValid(parm,val) {if (parm == "") return true; for (i=0; i -1) dd = dd.substr(0,n); n = dd.lastIndexOf('nd'); if (n > -1) dd = dd.substr(0,n); n = dd.lastIndexOf('rd'); if (n > -1) dd = dd.substr(0,n); n = dd.lastIndexOf('th'); if (n > -1) dd = dd.substr(0,n); n = dd.lastIndexOf(','); if (n > -1) dd = dd.substr(0,n); n = mm.lastIndexOf(','); if (n > -1) mm = mm.substr(0,n); if (!isNum(dd)) return false; if (!isNum(yy)) return false; if (!isNum(mm)) { var nn = mm.toLowerCase(); for (var i=1; i < 13; i++) { if (nn == mth[i] || nn == mth[i].substr(0,3)) {mm = i; i = 13;} } } if (!isNum(mm)) return false; dd = parseFloat(dd); mm = parseFloat(mm); yy = parseFloat(yy); if (yy < 100) yy += 2000; if (yy < 1582 || yy > 4881) return false; if (mm == 2 && (yy%400 == 0 || (yy%4 == 0 && yy%100 != 0))) day[mm-1]++; if (mm < 1 || mm > 12) return false; if (dd < 1 || dd > day[mm-1]) return false; t.setDate(dd); t.setMonth(mm-1); t.setFullYear(yy); if (rng == 'p' || rng == 'P') { if (t > today) return false; } else if (rng == 'f' || rng == 'F') { if (t < today) return false; } else if (rng != 'a' && rng != 'A') return false; return true; }