Validate Date

I changed line 10 from
if (InpDate.length < 6) to
if (InpDate.length < 10).

This way entering '12/12/' for example in the text box will be an invalid date. This script is very helpful.

Thanks,

Raef

Line 10 should be changed to
if (InpDate.length < 8).

This will make

'5/3/2003' , '05/3/2003' , '05/03/2003', etc.. valid dates.

Raef

let me know if this works

this works absolutely fine..and very easy

saw some bugs

such date causes a correct output
10/10/10/1

You're right about the bug. An easy fix would be to use a regular expression. You can add the lines below after the second "else" statement. The lines are as follows:




var regExpressionPhonePrefix = /\d\d\d\d/;
if((f.date.value.length > 6 ) && (!regExpressionPhonePrefix.test(f.date.value.substring(6,f.date.value.length+1)))) // try +1 instead of -1 (isNaN(f.date.value.substring(6,f.date.value.length-1))))
{

alert("That is a year for God's Sake");
return false;
break;
}

That will accept any four digit year. That's all Folks!

Just a follow up on my previous post. Just a clean up!




var regExpressionYear = /\d\d\d\d/;
if((f.date.value.length > 6 ) && (!regExpressionYear.test(f.date.value.substring(6,f.date.value.length+1))))
{
alert("That is a year for God's Sake");
return false;
break;
}

Happy Programming!