date validation

[houssam_ballout]

Hello,

I need the help on the following in order to validate date on my form (validation is onBlur):

 

- validation on form date format: dd-mm-yyyy , when I go to next field, if the date field is empty, it will be filled with today's date, and I write 9-3 and go to next field it will automatically write 9-3-2013 (where is 2013 is the current year), finally, if the date is not valid then user can't go to another field, focus must be go back to date field.

 

Help is much appreciated.

 

Thanks in advance

 

[codefossa]

Did you give it an attempt?  Show your code and maybe we can figure out where you went wrong.

[houssam_ballout]

I had the code for the validation dd-mm-yyyy but the auto complete is missing & when the field is empty is also missing!

Thanks

[Psycho]

And, again, where is your code?

[houssam_ballout]

Here it is, problem now, is that when I write 4-5 or 4-5- I need to autocomple the year with the current 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© == -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 = 31
        if (i==4 || i==6 || i==9 || i==11) {this = 30}
        if (i==2) {this = 29}
   }
   return this
}

function isDate(dtStr){
    var daysInMonth = DaysArray(12)
    var pos1=dtStr.indexOf(dtCh)
    var pos2=dtStr.indexOf(dtCh,pos1+1)
    var strDay=dtStr.substring(0,pos1)
    var strMonth=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 : dd-mm-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.getElementById("ADate");

var currentTime4 = new Date()
var month4 = currentTime4.getMonth() + 1
var day4 = currentTime4.getDate()
var year4 = currentTime4.getFullYear()
var finalDate4 = ( day4 + "-" + month4  + "-" + year4 );


if(dt.value == '')
{
    
dt.value = finalDate4;
    
}



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