You have a problem with your IF statement, as well as your form, you give it 2 onsubmit commands and one of them gets overwritten, which will cause problems.
Here is some working code:
CODE
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<!--
10/10/08
Web 420 SR-kf-011
-->
<!--
Web Page Title
-->
<title>Kudler Fine Foods Demographic</title>
<META HTTP-EQUIV="Content-Type" CONTENT="text/html; CHARSET=iso-1159-1">
<script type="text/javascript">
<!-- Form check -->
function submitForm() {
if (document.forms[0].fname.value == "" || document.forms[0].lname.value == "" || document.forms[0].address1.value == "" || document.forms[0].city.value == "" || document.forms[0].city.value == "" || document.forms[0].state.value == "" || document.forms[0].zip.value == "" || document.forms[0].phone.value == ""){
window.alert(" enter your information.");
return false;
}
return true;
}
</script>
</head>
<body style="color: blue; margin:0"; background="ob018.jpg">
<form name="request" id="request" action="Verification.htm"
onsubmit="return submitForm();" method="get" enctype="application/x-www-form-urlelncoded">
<table border="0" cellspacing="0" cellpadding="5" width="620" >
<thead style="font-family: sans-serif">
<!--
Company Logo and Heading
-->
<tr>
<td valign="top" width="180" rowspan="2">
<img src="Kudler-food-blk.gif" alt="kudler" width="275" height="175" >
</td>
<td style="font-size: 1.2em; color: blue; font-weight: bold; font-style: italic"
valign="top" align="center" >
Kudler Fine Foods Customer Information Form
</td>
</tr>
</thead>
<!-- Customer Information -->
<tr>
<td style="font-family: sans-serif; font-size: large; font-weight: bold"
colspan="2" width="100%">
Customer Information
</td>
</tr>
<tr>
<td colspan="2">
<hr style="color: blue; background-color: blue; height: 1" >
</td>
</tr>
<!-- Contact Information -->
<tr>
<td valign="top" colspan="2">
<table>
<tr>
<td width="100"><label for="fname">First Name</label></td>
<td><input type="text" name="fname" id="fname" size="30" >
<td><label for ="lname">Last Name</label></td>
<td><input type="text" name="lname" id="lname" size="30" >
</td>
</tr>
<tr>
<td><label for ="address1">Address #1</label></td>
<td><input type="text" name="address1" id="address1" size="60" ></td>
</tr>
<tr>
<td><label for ="address2">Address #2</label></td>
<td><input type="text" name="address2" id="address2" size="60" ></td>
</tr>
<tr>
<td><label for="city">City</label></td>
<td><input type="text" name="city" id="city" size="40" >
<label for="state">State</label>
<input type="text" name="state" id="state" size="3" >
<td><label for="zip">ZIP</label></td>
<td><input type="text" name="zip" id="zip" size="10" maxlength="10" >
</td>
</tr>
<tr>
<td><label for="phone">Phone</label></td>
<td><input type="text" name="phone" id="phone" size="12" >
</td>
</tr>
<tr>
<td><label for="email">Email Address</label></td>
<td><input type="text" name="email" id="email" size="40" ></td>
</tr>
</table>
</td>
<tr>
<td valign="top">
<input type="checkbox" name="use" id="mail" value="mail" >
<label for="mail">Add me to your Mailing List</label><br >
</td>
</tr>
<tr>
<td colspan="2">
<hr style="color: green; background-color: green; height: 1" >
</td>
</tr>
<!--
Customer Comments
-->
<tr>
<td width="100" valign="top">
<label for="comments">Comments</label>
</td>
<td valign="top">
<textarea name="comments" id="comments" rows="6" cols="40">
</textarea>
</td>
</tr>
<!-- Buttons for cancelation or submission -->
<tr>
<td valign="top" colspan="2" align="center">
<input type="submit" value="Submit" >
<input type="reset" value="Cancel" >
</td>
</tr>
<!-- Company Name and locations -->
<tr style="background-color: blue">
<td colspan="2" align="center" valign="bottom">
<address style="font-family: sans-serif; font-size: 0.8em; font-style: normal; color: white">
Kudler Fine Foods · Del Mar · La Jolla · Encinitas ·
</address>
</td>
</tr>
</table>
</form>
</body>
</html>
Hope that helps.