Javascript help

[riddhi]

here is my java code that I am using:-

 

function checkShippingAndPaymentInfo()
{
with (window.document.frmCheckout) {
	if (isEmpty(txtShippingFirstName, 'Enter first name')) {
		return false;
	} else if (isEmpty(txtShippingLastName, 'Enter last name')) {
		return false;
	} else if (isEmpty(txtShippingAddress1, 'Enter shipping address')) {
		return false;
	} else if (isEmpty(txtShippingPhone, 'Enter phone number')) {
		return false;
	} else if (isEmpty(txtShippingState, 'Enter shipping address state')) {
		return false;
	} else if (isEmpty(txtShippingCity, 'Enter shipping address city')) {
		return false;
	} else if (isEmpty(txtShippingPostalCode, 'Enter the shipping address postal/zip code')) {
		return false;
	} else if (isEmpty(txtPaymentFirstName, 'Enter first name')) {
		return false;
	} else if (isEmpty(txtPaymentLastName, 'Enter last name')) {
		return false;
	} else if (isEmpty(txtPaymentAddress1, 'Enter Payment address')) {
		return false;
	} else if (isEmpty(txtPaymentPhone, 'Enter phone number')) {
		return false;
	} else if (isEmpty(txtPaymentState, 'Enter Payment address state')) {
		return false;
	} else if (isEmpty(txtPaymentCity, 'Enter Payment address city')) {
		return false;
	} else if (isEmpty(txtPaymentPostalCode, 'Enter the Payment address postal/zip code')) {
		return false;
	} else {
		return true;
	}
}

 

I want that the invalid entry to be displayed as soon as the user enters an invalid input like :-

 If the user enters name beginning with 1 for example a window will pop up informing invalid input. How to do it?

[joshi_v]

 

I guess u can use OnKeyPress . write a function to check the character codes and call it on OnkeyPress event. i think it works for u.

 

All the best.