onblur errors in Netscape

[kat luna]

Hi all.
We are doing form validation using the onBlur event to make sure each textbox is filled before moving on to the next one. However this produces an endless loop in Netscape and you have to close the browser to escape (not very user friendly ).
I have searched the archives here and several people recommended the onBlur event for validation. Has anyone found a way around the Netscape problem or do you all code for IE only?
Here is my code:
<SCRIPT LANGUAGE="JavaScript">
<!--
function verify(field) {
var str = field.name;
if(field.value == "") {
alert("The field is " + str);
field.focus();
}
}
//-->
</SCRIPT>
....
<FORM>
SSN:<input type="text" name="ssn" onBlur="verify(this)" maxlength="9">
First Name: <input type="text" name="firstName" onBlur="verify(this)">
Last Name:<input type="text" name="lastName" onBlur="verify(this)">
</FORM>

[Gazza Bee]

I'm getting the same thing thing in IE6! About to chuck my box out the window.
Here's my javascript:
function checkForNull(elm,elmVal){
if(elmVal==""){
alert("Please enter a value.");
elm.focus();
return false;
}
}
and in the form:
<input ..... onBlur="checkForNull(this,this.value);">
Seems innocent enough, but loops endlessly. I'm dyin' here. Can anyone help with this pleeeease?

[Eric Pascarello]

the reason why is that it will always be blurred, you need to refocus it. See if this works.
Also look in my sig. below:
onblur="ValidateIt(this)"
function ValidateIt(X){
if(X.value=""){
alert('Error ;
X.focus();
}
else return true;
}