Minal1/Min
"americandate": { // Check if date is valid by leap year "func": function (field) { var pattern = new RegExp(/^(0?[1-9]|1[012])[\/\-](0?[1-9]|[12][0-9]|3[01])[\/\-](\d{4})$/); var match = pattern.exec(field.val()); if (match == null) return false; var year = match[3]; var month = match[1]*1; var day = match[2]*1; var date = new Date(year, month - 1, day); // because months starts from 0. return (date.getFullYear() == year && date.getMonth() == (month - 1) && date.getDate() == day); }, "alertText": "* Invalid date, must be in MM/DD/YYYY format" }, where to call the function americandate?