Please help me on this script

[settyv]

Hi,

I need to write a Javascript which calculates datedifference as well
as date comparision.Whe n i try to embed the below script,it is working
well,but the page is submitting even when the condition evaluates to
false .Please let me know the reason what is the problem in the below
script.
function ValidateDate()
{

var fromDate=new
Date(document.g etElementById(" txtFromFiledDat e").value);
var toDate=new
Date(document.g etElementById(" txtToFiledDate" ).value);
var diffDate=new Date();
diffDate = (toDate - fromDate);
diffDate = ((((diffDate / 1000) / 60) / 60) / 24);
alert("Differen ce is: " + diffDate);
alert(diffDate> 30);
if(diffDate<0){ alert("Start Date cannot be after End Date!")
return false;}
if(diffDate>30 && diffDate<0) {alert("Please enter the date in
Range")
return false;}
return true;
}
Thanks,
Vishnu

[Erwin Moller]

se****@gmail.co m wrote:

>
Hi,

I need to write a Javascript which calculates datedifference as well
as date comparision.Whe n i try to embed the below script,it is working
well,but the page is submitting even when the condition evaluates to
false .Please let me know the reason what is the problem in the below
script.
function ValidateDate()
{

var fromDate=new
Date(document.g etElementById(" txtFromFiledDat e").value);
var toDate=new
Date(document.g etElementById(" txtToFiledDate" ).value);
var diffDate=new Date();
diffDate = (toDate - fromDate);
diffDate = ((((diffDate / 1000) / 60) / 60) / 24);
alert("Differen ce is: " + diffDate);
alert(diffDate> 30);
if(diffDate<0){ alert("Start Date cannot be after End Date!")
return false;}
if(diffDate>30 && diffDate<0) {alert("Please enter the date in
Range")
return false;}
return true;
}
Thanks,
Vishnu

Hi,

How does your formtag look?
It should look like this:
<form action="bla" onSubmit="retur n ValidateDate(); ">

mind the return before the functioncall.
If onSubmit returns false, the form is not submitted.
A common mistake is to forget the return (speaking from own experience.)

Regards,
Erwin Moller

[settyv]

Hi Erwin,

Thanks for your lightening response.As you said,i forgot to specify
return statement while calling the function.

Thanks,
Vishnu

Erwin Moller wrote:

se****@gmail.co m wrote:

Hi,

I need to write a Javascript which calculates datedifference as well
as date comparision.Whe n i try to embed the below script,it is working
well,but the page is submitting even when the condition evaluates to
false .Please let me know the reason what is the problem in the below
script.
function ValidateDate()
{

var fromDate=new
Date(document.g etElementById(" txtFromFiledDat e").value);
var toDate=new
Date(document.g etElementById(" txtToFiledDate" ).value);
var diffDate=new Date();
diffDate = (toDate - fromDate);
diffDate = ((((diffDate / 1000) / 60) / 60) / 24);
alert("Differen ce is: " + diffDate);
alert(diffDate> 30);
if(diffDate<0){ alert("Start Date cannot be after End Date!")
return false;}
if(diffDate>30 && diffDate<0) {alert("Please enter the date in
Range")
return false;}
return true;
}
Thanks,
Vishnu

Hi,

How does your formtag look?
It should look like this:
<form action="bla" onSubmit="retur n ValidateDate(); ">

mind the return before the functioncall.
If onSubmit returns false, the form is not submitted.
A common mistake is to forget the return (speaking from own experience.)

Regards,
Erwin Moller

[settyv]

Hi,

Now am facing another issue.It is telling script error "return
statement outside the function"
Please let me know why am getting this error.

Thanks,
Vishnu
se****@gmail.co m wrote:

Hi Erwin,

Thanks for your lightening response.As you said,i forgot to specify
return statement while calling the function.

Thanks,
Vishnu

Erwin Moller wrote:

se****@gmail.co m wrote:

>
Hi,
>
I need to write a Javascript which calculates datedifference as well
as date comparision.Whe n i try to embed the below script,it is working
well,but the page is submitting even when the condition evaluates to
false .Please let me know the reason what is the problem in the below
script.
>
>
function ValidateDate()
{
>
var fromDate=new
Date(document.g etElementById(" txtFromFiledDat e").value);
var toDate=new
Date(document.g etElementById(" txtToFiledDate" ).value);
var diffDate=new Date();
diffDate = (toDate - fromDate);
diffDate = ((((diffDate / 1000) / 60) / 60) / 24);
alert("Differen ce is: " + diffDate);
alert(diffDate> 30);
if(diffDate<0){ alert("Start Date cannot be after End Date!")
return false;}
if(diffDate>30 && diffDate<0) {alert("Please enter the date in
Range")
return false;}
return true;
}
>
>
Thanks,
Vishnu

Hi,

How does your formtag look?
It should look like this:
<form action="bla" onSubmit="retur n ValidateDate(); ">

mind the return before the functioncall.
If onSubmit returns false, the form is not submitted.
A common mistake is to forget the return (speaking from own experience.)

Regards,
Erwin Moller

[Evertjan.]

wrote on 26 okt 2006 in comp.lang.javas cript:

I need to write a Javascript

"need" = school work? Let's hope not!

which calculates datedifference as well
as date comparision.Whe n i try to embed the below script,it is working
well,but the page is submitting

submitting?

You do not show the code.

even when the condition evaluates to
false .Please let me know the reason what is the problem in the below
script.

function ValidateDate()
{

[..]

if(diffDate>30 && diffDate<0)

A value can NEVER be both more than 30 and less than zero ;-{

[..]

Do not read on, if this is a school assignment,
you will never learn, if you do not try to program for yourself.

=============== =============== =============== ===
<script type='text/javascript'>

function ValidateDate( f ) {

var d1 = new Date( f.elements['fromDate'].value );
var d2 = new Date( f.elements['toDate'].value );

// below formula from John Stockton at
// <http://www.merlyn.demo n.co.uk/js-date1.htm#DDf>
// no account is taken of summer/winter and other time differences.

var diffDate = Math.round( ( d2-d1 ) / 864e5 );

// alert( diffDate ); // debugger

if ( diffDate < 0 ) {
alert( 'The start date cannot be after the end date!")
return false;
}

if ( diffDate 30 ) {
alert( 'Please enter dates less than 31 days apart' )
return false;
}

return true; // allow submit
}

</script>
<form onsubmit='retur n ValidateDate( this );'>
<input name='fromDate' value='2006/1/1'start<br>
<input name='toDate' value='2006/12/1'end<br>
<input type='submit'>
</form>
=============== =============== =============== ====
--
Evertjan.
The Netherlands.
(Please change the x'es to dots in my emailaddress)

[Matt Kruse]

se****@gmail.co m wrote:

I need to write a Javascript which calculates datedifference as well
as date comparision.

Is this for a homework assignment or something?

If not, why not just use a lib which already does a lot of the work for you:
http://www.javascripttoolbox.com/lib/date/

--
Matt Kruse
http://www.JavascriptToolbox.com
http://www.AjaxToolbox.com

[settyv]

Hi,

function ValidateDate()
{

var fromDate=new
Date(document.g etElementById(" txtFromFiledDat e").value);
var toDate=new
Date(document.g etElementById(" txtToFiledDate" ).value);
var diffDate = Math.round( ( toDate-fromDate ) / 864e5 );

if ( diffDate < 0 ) {
alert( "The start date cannot be after the end date!")
return false;
}
if ( diffDate 30 ) {
alert( "Please enter dates less than 31 days apart" )
return false;
}
return true;

}

I am trying to use this javascript for client-side validation in my
ASPX page using customvalidator control as below:

<asp:CustomVali dator id="CustomValid ator1" runat="server"
ClientValidatio nFunction="retu rn
ValidateDate(); "></asp:CustomValid ator>

Now the problem with the function is that the page is submitting when
datediff<0 .it should not submit.Also alert msg is coming twice and
submitting the page.

Please let me know what is the reason for this.

Thanks,
Vishnu

i have a search button on my screen.When i enter the dates and click it
has to validate.

Matt Kruse wrote:

se****@gmail.co m wrote:

I need to write a Javascript which calculates datedifference as well
as date comparision.

Is this for a homework assignment or something?

If not, why not just use a lib which already does a lot of the work for you:
http://www.javascripttoolbox.com/lib/date/

--
Matt Kruse
http://www.JavascriptToolbox.com
http://www.AjaxToolbox.com

[settyv]

Hi,

How do i write the same function with parameters? Please help me.

Thanks,
Vishnu

Evertjan. wrote:

wrote on 26 okt 2006 in comp.lang.javas cript:

I need to write a Javascript

"need" = school work? Let's hope not!

which calculates datedifference as well
as date comparision.Whe n i try to embed the below script,it is working
well,but the page is submitting

submitting?

You do not show the code.

even when the condition evaluates to
false .Please let me know the reason what is the problem in the below
script.

function ValidateDate()
{

[..]

if(diffDate>30 && diffDate<0)

A value can NEVER be both more than 30 and less than zero ;-{

[..]

Do not read on, if this is a school assignment,
you will never learn, if you do not try to program for yourself.

=============== =============== =============== ===
<script type='text/javascript'>

function ValidateDate( f ) {

var d1 = new Date( f.elements['fromDate'].value );
var d2 = new Date( f.elements['toDate'].value );

// below formula from John Stockton at
// <http://www.merlyn.demo n.co.uk/js-date1.htm#DDf>
// no account is taken of summer/winter and other time differences.

var diffDate = Math.round( ( d2-d1 ) / 864e5 );

// alert( diffDate ); // debugger

if ( diffDate < 0 ) {
alert( 'The start date cannot be after the end date!")
return false;
}

if ( diffDate 30 ) {
alert( 'Please enter dates less than 31 days apart' )
return false;
}

return true; // allow submit
}

</script>
<form onsubmit='retur n ValidateDate( this );'>
<input name='fromDate' value='2006/1/1'start<br>
<input name='toDate' value='2006/12/1'end<br>
<input type='submit'>
</form>
=============== =============== =============== ====
--
Evertjan.
The Netherlands.
(Please change the x'es to dots in my emailaddress)

[settyv]

Hi,

How do i write the same function with parameters? Please help me.

Thanks,
Vishnu

Evertjan. wrote:

wrote on 26 okt 2006 in comp.lang.javas cript:

I need to write a Javascript

"need" = school work? Let's hope not!

which calculates datedifference as well
as date comparision.Whe n i try to embed the below script,it is working
well,but the page is submitting

submitting?

You do not show the code.

even when the condition evaluates to
false .Please let me know the reason what is the problem in the below
script.

function ValidateDate()
{

[..]

if(diffDate>30 && diffDate<0)

A value can NEVER be both more than 30 and less than zero ;-{

[..]

Do not read on, if this is a school assignment,
you will never learn, if you do not try to program for yourself.

=============== =============== =============== ===
<script type='text/javascript'>

function ValidateDate( f ) {

var d1 = new Date( f.elements['fromDate'].value );
var d2 = new Date( f.elements['toDate'].value );

// below formula from John Stockton at
// <http://www.merlyn.demo n.co.uk/js-date1.htm#DDf>
// no account is taken of summer/winter and other time differences.

var diffDate = Math.round( ( d2-d1 ) / 864e5 );

// alert( diffDate ); // debugger

if ( diffDate < 0 ) {
alert( 'The start date cannot be after the end date!")
return false;
}

if ( diffDate 30 ) {
alert( 'Please enter dates less than 31 days apart' )
return false;
}

return true; // allow submit
}

</script>
<form onsubmit='retur n ValidateDate( this );'>
<input name='fromDate' value='2006/1/1'start<br>
<input name='toDate' value='2006/12/1'end<br>
<input type='submit'>
</form>
=============== =============== =============== ====
--
Evertjan.
The Netherlands.
(Please change the x'es to dots in my emailaddress)

[Evertjan.]

wrote on 26 okt 2006 in comp.lang.javas cript:

>>
============== =============== =============== ====
<script type='text/javascript'>

function ValidateDate( f ) {

var d1 = new Date( f.elements['fromDate'].value );
var d2 = new Date( f.elements['toDate'].value );

// below formula from John Stockton at
// <http://www.merlyn.demo n.co.uk/js-date1.htm#DDf>
// no account is taken of summer/winter and other time differences.

var diffDate = Math.round( ( d2-d1 ) / 864e5 );

// alert( diffDate ); // debugger

if ( diffDate < 0 ) {
alert( 'The start date cannot be after the end date!")
return false;
}

if ( diffDate 30 ) {
alert( 'Please enter dates less than 31 days apart' )
return false;
}

return true; // allow submit
}

</script>
<form onsubmit='retur n ValidateDate( this );'>
<input name='fromDate' value='2006/1/1'start<br>
<input name='toDate' value='2006/12/1'end<br>
<input type='submit'>
</form>
============== =============== =============== =====

[Please do not toppost on usenet, use sparse interquote]

How do i write the same function with parameters? Please help me.

Is the (f) not parameter enough?
--
Evertjan.
The Netherlands.
(Please change the x'es to dots in my emailaddress)