Full version: jsB@nk » Time » Validation » Validation script (Date)
URL: https://www.javascriptbank.com/validation-script-date.html
Dates are validated and formatted in your form. Supports over a dozen different date formats, and formats the date properly in United States or European date formatting styles depending on how the script is configured. A dateCheck function also is included if you wish to compare two dates. Wow!
Full version: jsB@nk » Time » Validation » Validation script (Date)
URL: https://www.javascriptbank.com/validation-script-date.html
<SCRIPT LANGUAGE="JavaScript">// Mike Welagen ([email protected])<!-- Beginfunction checkdate(objName) {var datefield = objName;if (chkdate(objName) == false) {datefield.select();alert("That date is invalid. Please try again.");datefield.focus();return false;}else {return true; }}function chkdate(objName) {var strDatestyle = "US"; //United States date style//var strDatestyle = "EU"; //European date stylevar strDate;var strDateArray;var strDay;var strMonth;var strYear;var intday;var intMonth;var intYear;var booFound = false;var datefield = objName;var strSeparatorArray = new Array("-"," ","/",".");var intElementNr;var err = 0;var strMonthArray = new Array(12);strMonthArray[0] = "Jan";strMonthArray[1] = "Feb";strMonthArray[2] = "Mar";strMonthArray[3] = "Apr";strMonthArray[4] = "May";strMonthArray[5] = "Jun";strMonthArray[6] = "Jul";strMonthArray[7] = "Aug";strMonthArray[8] = "Sep";strMonthArray[9] = "Oct";strMonthArray[10] = "Nov";strMonthArray[11] = "Dec";strDate = datefield.value;if (strDate.length < 1) {return true;}for (intElementNr = 0; intElementNr < strSeparatorArray.length; intElementNr++) {if (strDate.indexOf(strSeparatorArray[intElementNr]) != -1) {strDateArray = strDate.split(strSeparatorArray[intElementNr]);if (strDateArray.length != 3) {err = 1;return false;}else {strDay = strDateArray[0];strMonth = strDateArray[1];strYear = strDateArray[2];}booFound = true; }}if (booFound == false) {if (strDate.length>5) {strDay = strDate.substr(0, 2);strMonth = strDate.substr(2, 2);strYear = strDate.substr(4); }}if (strYear.length == 2) {strYear = '20' + strYear;}// US styleif (strDatestyle == "US") {strTemp = strDay;strDay = strMonth;strMonth = strTemp;}intday = parseInt(strDay, 10);if (isNaN(intday)) {err = 2;return false;}intMonth = parseInt(strMonth, 10);if (isNaN(intMonth)) {for (i = 0;i<12;i++) {if (strMonth.toUpperCase() == strMonthArray[i].toUpperCase()) {intMonth = i+1;strMonth = strMonthArray[i];i = 12; }}if (isNaN(intMonth)) {err = 3;return false; }}intYear = parseInt(strYear, 10);if (isNaN(intYear)) {err = 4;return false;}if (intMonth>12 || intMonth<1) {err = 5;return false;}if ((intMonth == 1 || intMonth == 3 || intMonth == 5 || intMonth == 7 || intMonth == 8 || intMonth == 10 || intMonth == 12) && (intday > 31 || intday < 1)) {err = 6;return false;}if ((intMonth == 4 || intMonth == 6 || intMonth == 9 || intMonth == 11) && (intday > 30 || intday < 1)) {err = 7;return false;}if (intMonth == 2) {if (intday < 1) {err = 8;return false;}if (LeapYear(intYear) == true) {if (intday > 29) {err = 9;return false;}}else {if (intday > 28) {err = 10;return false;}}}if (strDatestyle == "US") {datefield.value = strMonthArray[intMonth-1] + " " + intday+" " + strYear;}else {datefield.value = intday + " " + strMonthArray[intMonth-1] + " " + strYear;}return true;}function LeapYear(intYear) {if (intYear % 100 == 0) {if (intYear % 400 == 0) { return true; }}else {if ((intYear % 4) == 0) { return true; }}return false;}function doDateCheck(from, to) {if (Date.parse(from.value) <= Date.parse(to.value)) {alert("The dates are valid.");}else {if (from.value == "" || to.value == "") alert("Both dates must be entered.");else alert("To date must occur after the from date."); }}// End --></script><!-- This script downloaded from www.JavaScriptBank.com Come to view and download over 2000+ free javascript at www.JavaScriptBank.com--><form><pre>From date <input type=text name=from onBlur="checkdate(this)" size=11 maxlength=11>To date <input type=text name=to onBlur="checkdate(this)" size=11 maxlength=11><input type=button name=formatbutton onClick="doDateCheck(this.form.from, this.form.to);" value="Check"></pre></form><!-- This script downloaded from www.JavaScriptBank.com Come to view and download over 2000+ free javascript at www.JavaScriptBank.com-->