Javascript表单验证程序日期

我需要帮助。这是我的html代码：Javascript表单验证程序日期

<tr> 
    <div align="left">Please Enter Date: 
    <td><div align="left" class="style66">(E.g: 8-Feb-11)<br><input name="userdateinp" type="text" size="20" id="userdateinp"/></div></td> 
    </tr>

当我点击提交按钮..和用户输入错误的日期，如：11年8月2日或二月-8-11脚本必须说，用户输入的错误的日期格式。怎么做？我看到的只是纯数字教程。那么说FEB，MAR，APR等的月份如何:)

我从网上得到了这段代码。

Javascript代码：

<script language = "Javascript"> 
/** 
* DHTML date validation script. Courtesy of SmartWebby.com (http://www.smartwebby.com/dhtml/) 
*/ 
// Declaring valid date character, minimum year and maximum year 
var dtCh= "/"; 
var minYear=1900; 
var maxYear=2100; 

function isInteger(s){ 
    var i; 
    for (i = 0; i < s.length; i++){ 
     // Check that current character is number. 
     var c = s.charAt(i); 
     if (((c < "0") || (c > "9"))) return false; 
    } 
    // All characters are numbers. 
    return true; 
} 

function stripCharsInBag(s, bag){ 
    var i; 
    var returnString = ""; 
    // Search through string's characters one by one. 
    // If character is not in bag, append to returnString. 
    for (i = 0; i < s.length; i++){ 
     var c = s.charAt(i); 
     if (bag.indexOf(c) == -1) returnString += c; 
    } 
    return returnString; 
} 

function daysInFebruary (year){ 
    // February has 29 days in any year evenly divisible by four, 
    // EXCEPT for centurial years which are not also divisible by 400. 
    return (((year % 4 == 0) && ((!(year % 100 == 0)) || (year % 400 == 0))) ? 29 : 28); 
} 
function DaysArray(n) { 
    for (var i = 1; i <= n; i++) { 
     this[i] = 31 
     if (i==4 || i==6 || i==9 || i==11) {this[i] = 30} 
     if (i==2) {this[i] = 29} 
    } 
    return this 
} 

function isDate(dtStr){ 
    var daysInMonth = DaysArray(12) 
    var pos1=dtStr.indexOf(dtCh) 
    var pos2=dtStr.indexOf(dtCh,pos1+1) 
    var strMonth=dtStr.substring(0,pos1) 
    var strDay=dtStr.substring(pos1+1,pos2) 
    var strYear=dtStr.substring(pos2+1) 
    strYr=strYear 
    if (strDay.charAt(0)=="0" && strDay.length>1) strDay=strDay.substring(1) 
    if (strMonth.charAt(0)=="0" && strMonth.length>1) strMonth=strMonth.substring(1) 
    for (var i = 1; i <= 3; i++) { 
     if (strYr.charAt(0)=="0" && strYr.length>1) strYr=strYr.substring(1) 
    } 
    month=parseInt(strMonth) 
    day=parseInt(strDay) 
    year=parseInt(strYr) 
    if (pos1==-1 || pos2==-1){ 
     alert("The date format should be : mm/dd/yyyy") 
     return false 
    } 
    if (strMonth.length<1 || month<1 || month>12){ 
     alert("Please enter a valid month") 
     return false 
    } 
    if (strDay.length<1 || day<1 || day>31 || (month==2 && day>daysInFebruary(year)) || day > daysInMonth[month]){ 
     alert("Please enter a valid day") 
     return false 
    } 
    if (strYear.length != 4 || year==0 || year<minYear || year>maxYear){ 
     alert("Please enter a valid 4 digit year between "+minYear+" and "+maxYear) 
     return false 
    } 
    if (dtStr.indexOf(dtCh,pos2+1)!=-1 || isInteger(stripCharsInBag(dtStr, dtCh))==false){ 
     alert("Please enter a valid date") 
     return false 
    } 
return true 
} 

function ValidateForm(){ 
    var dt=document.frmSample.txtDate 
    if (isDate(dt.value)==false){ 
     dt.focus() 
     return false 
    } 
    return true 
} 

</script>

那么这里的HTML代码：

<form name="frmSample" method="post" action="" onSubmit="return ValidateForm()"> 
       <p>Enter a Date <font color="#CC0000"><b>(mm/dd/yyyy)</b></font> 
        : 
        <input type="text" name="txtDate" maxlength="10" size="15"> 
       </p> 
       <p> 
        <input type="submit" name="Submit" value="Submit"> 
       </p> 
       </form>

如何修改它，使其.. 08 - 2月11？ :)

来源

2011-03-31 catsgirl008

代码在哪里？ – Slappy 2011-03-31 02:18:07

这是代码。 :) *以上* – catsgirl008 2011-03-31 05:18:15