help

[jyotsana dang]

whats wrong with this function in javascripting..
trying to validate the year field so that the user can insert in only numeric fields and not more than 4 digits..
function checkNumber(year)
{
year += "";
StrRE2 = /[^0-9]/;
if(year.match(StrRE2)||year.length!=4)
{
alert="Please enter only numeric values and not more than 4 digits"
}
else
{
return true
}
}

[jyothsna kumari]

hi,
If the problem you are facing is in displaying the alert msg then it should be like this.
if(year.match(StrRE2)||year.length!=4)
{
alert("Please enter only numeric values and not more than 4 digits")
}
Other than that i don't find any thing wrong.
Jyothsna

[jyotsana dang]

ya ..right.. got to be little cool - headed..
got it workng..bt iam also trying to validate the year so that user should not mistakenly enter more or less than 4 digits..that is still stuck up

anyways..thanks..

[himanshu patel]

Alternatively you can use isNaN function as shown below.
function checkNumber(year)
{
if(isNaN(year) || year.length != 4)
{
alert("Please enter only numeric values and not more than 4 digits");
}
else
{
alert("Valid year");
}
}