Checking input date agains a file of holidays

[Papa Bear]

Hi All

What I am trying to do is output a message "Holiday" immediately after entering a date using the following JavaScript.

<script type="text/javascript">
    var noHols = "<%=iNoHols%>"
    function datePickerClosed(dateField) {
        var HolArray = new Array();
        document.getElementById("DateMess").value = noHols;
    }
</script>

It last line will eventually be replaced with

        document.getElementById("DateMess").value = "Holiday;

There will obviously also be some code to check the date, but first I need to get some variables from ASP. I have set these up using the following

dim dStartHols(100), dEndHols(100)
holsSql = "SELECT Start_Date, End_Date from lawn_holidays " &_
            "Where UserID='" & Request.Cookies("userid") & "' " &_
            "AND Van=" & iVan
            
response.write holsSql & "<BR>"
set holsRS=DBconn.execute(holsSql)

iNoHols=-1 'because arrays start from zero
if holsRS.BOF and holsRS.EOF then
    response.write "empty" & "<br>"
else
    response.write "Full" & "<br>"
	do until holsRS.eof
        iNoHols = iNoHols + 1
		dStartHols(iNoHols) = holsRS("Start_Date")
		dEndHols(iNoHols) = holsRS("End_Date")
		holsRS.movenext
	loop
    'because arrays start from zero, if 1 holiday, then will have value 0
end if

My problem is reading iNoHols, dStartHols and dEndHols in the JavaScript. You can see I have tried to get iNoHols in the code above and display it in the last line. I have googled this for days and var noHols = "<%=iNoHols%>" seems to be the way to go, but no joy. Can you see what I am doing wrong?

Thanks

 

[ChrisHirst]

Can you see what I am doing wrong?

Trying to make javascript 'talk' ASP vBscript. Never ever going to happen. ASP code is done and finished with before the javascript even gets to the browser never mind starts to run.

You either do everything server side with round trips using form data, or use AJAX to 'talk' to the server side system.

Chris.

Indifference will be the downfall of mankind, but who cares?
Time flies like an arrow, however, fruit flies like a banana.
Webmaster Forum

 

[gk53]

Yes Chris absolutely right...
you can stick somewhere in javascript array of holidays and check against that array or use ajax call from javascript to server with selected value and get from another asp page on server result

 

[guitardave78]

Hi

Not totally sure I understand, but from the point of view of javascript being able to see the asp - order is everything.

<%
dim dStartHols(100), dEndHols(100)
holsSql = "SELECT Start_Date, End_Date from lawn_holidays " &_
            "Where UserID='" & Request.Cookies("userid") & "' " &_
            "AND Van=" & iVan
            
response.write holsSql & "<BR>"
set holsRS=DBconn.execute(holsSql)

iNoHols=-1 'because arrays start from zero
if holsRS.BOF and holsRS.EOF then
    response.write "empty" & "<br>"
else
    response.write "Full" & "<br>"
	do until holsRS.eof
        iNoHols = iNoHols + 1
		dStartHols(iNoHols) = holsRS("Start_Date")
		dEndHols(iNoHols) = holsRS("End_Date")
		holsRS.movenext
	loop
    'because arrays start from zero, if 1 holiday, then will have value 0
end if 
%>

<script type="text/javascript">
    var noHols = "<%=iNoHols%>";
    function datePickerClosed(dateField) {
        var HolArray = new Array();
        document.getElementById("DateMess").value = noHols;
    }
</script>

As long as iNoHols is set in the first ASP bit, it will be usable in the javascript.

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