cgi error checking

#c_parser.py
#import appropiate modules

import cgi
import cgitb; cgitb.enable()
form = cgi.FieldStorage()
print "Content-type: text/html"
print



#get form information

try:
    """since pyhton executed at run time it makes sense to log errors as they occur"""
    
    name = form["name"].value
    if name.isalpha():
        name = name.lower()
    else:
        print "Please enter a valid name"
        print "<br/>"
        
    exp = form["Experience"].value
    level = form["Level"].value
    product = form["Product"].value
    
    area_code = form["area_code"].value
    if area_code.isalpha():
        print "Please enter a valid area code"
        print "<br/>"
        
    phone_prefix = form["p_prefix"].value
    if phone_prefix.isalpha():
        print "Please enter a valid phone prefix"
        print "<br/>"
        
    phone_suffix = form["p_suffix"].value
    if phone_suffix.isalpha():
        print "Please enter a valid phone suffix"
        print "<br/>"
        
    email = form["email"].value
    if "@" not in email:
        """possible to check if endswith .com or .net or .biz, maybe just make sure its ."""
        if email[:-4] != ".":
            print "please enter a valid email"
            print "<br/>"
    phone = area_code + "-" + phone_prefix + "-"+ phone_suffix
except Exception, e:
    print "Please input your ", e
    """this only gives 1 error at a time since python is executed at run time"""
else:
    pass
    #print name, exp, level, product, phone, email

#===================================================print content and confirmation to the user

<SCRIPT LANGUAGE="JavaScript">
<!-- //Begin
function emailCheck (emailStr) {
    var checkTLD=0;
    var knownDomsPat=/^(com|net|org|edu|int|mil|gov|arpa|biz|aero|name|coop|info|pro|museum)$/;
    var emailPat=/^(.+)@(.+)$/;
    var specialChars="\\(\\)><@,;:\\\\\\\"\\.\\[\\]";
    var validChars="\[^\\s" + specialChars + "\]";
    var quotedUser="(\"[^\"]*\")";
    var ipDomainPat=/^\[(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})\]$/;
    var atom=validChars + '+';
    var word="(" + atom + "|" + quotedUser + ")";
    var userPat=new RegExp("^" + word + "(\\." + word + ")*$");
    var domainPat=new RegExp("^" + atom + "(\\." + atom +")*$");
    var matchArray=emailStr.match(emailPat);
    
    if (matchArray==null) {
        alert("The email address seems incorrect (check @ and .'s)");
        return false;
    }
    var user=matchArray[1];
    var domain=matchArray[2];
    
    for (i=0; i<user.length; i++) {
        if (user.charCodeAt(i)>127) {
            alert("The email address contains invalid characters.");
            return false;
       }
    }
    for (i=0; i<domain.length; i++) {
        if (domain.charCodeAt(i)>127) {
            alert("The email address contains invalid characters.");
            return false;
       }
    }
    if (user.match(userPat)==null) {
    alert("The email address doesn't seem to be valid.");
    return false;
    }
    var IPArray=domain.match(ipDomainPat);
    if (IPArray!=null) {
        for (var i=1;i<=4;i++) {
            if (IPArray[i]>255) {
                alert("Destination IP address is invalid!");
                return false;
            }
        }
        return true;
    }
     
    var atomPat=new RegExp("^" + atom + "$");
    var domArr=domain.split(".");
    var len=domArr.length;
    for (i=0;i<len;i++) {
        if (domArr[i].search(atomPat)==-1) {
            alert("The email address does not seem to be valid.");
            return false;
       }
    }
    
    if (checkTLD && domArr[domArr.length-1].length!=2 && 
    domArr[domArr.length-1].search(knownDomsPat)==-1) {
        alert("The address must end in a well-known domain or two letter " + "country.");
        return false;
    }
    
    if (len<2) {
        alert("The email address is missing a hostname!");
        return false;
    }
    
    // If we've gotten this far, everything's valid!
    return true;
}

//  End -->

</script>

<form name="form1" method="post" action="cgi/doStuff.py" onSubmit="return emailCheck(this.email.value)">