/*  ========================================================
Filename: jsfuncs.js
Called by:
Description/Notes: Javascript routines
Update History:
10/04/09 DSK - Released for Lucky Dog Photography
============================================================ */

function mailchk(emailStr) {
    var checkTLD=1;
    var knownDomsPat=/^(com|net|org|edu|int|mil|gov|biz|aero|name|coop|info|pro|museum)$/;
    var emailPat=/^(.+)@(.+)$/;
    var specialChars="\\(\\)><@,;:\\\\\\\"\\.\\[\\]"; //removed _ from this pattern
    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 +")*$");
    var matchArray=emailStr.match(emailPat);
    if (matchArray==null) {return false;}
    var user=matchArray[1];
    var domain=matchArray[2];
    for (i=0; i<user.length; i++) {if (user.charCodeAt(i)>127) {return false;}}
    for (i=0; i<domain.length; i++) {if (domain.charCodeAt(i)>127) {return false;}}
    if (user.match(userPat)==null) {return false;}
    var IPArray=domain.match(ipDomainPat);
    if (IPArray!=null) {for (var i=1;i<=4;i++) {if (IPArray[i]>255) {return false;}}return true;}
    var atomPat=new RegExp("^" + atom + "$");
    var domArr=domain.split(".");
    var len=domArr.length;
    for (i=0;i<len;i++) {if (domArr[i].search(atomPat)==-1) {return false;}}
    if (checkTLD && domArr[domArr.length-1].length!=2 && domArr[domArr.length-1].search(knownDomsPat)==-1) {return false;}
    if (len<2) {return false;}
    return true;
}

function mcheck() {
    var missing = "";
    var lname   = document.forms[0].name.value.length;
    var email   = document.forms[0].email.value.length;
    var mailstr = document.forms[0].email.value;
    var tel     = document.forms[0].phone.value.length;
    if (lname == 0) {missing += 'Your name\n';}
    if (email == 0) {missing += 'Email address\n';}
    if (tel  == 0)  {missing += 'Phone number\n';}
    if (missing.length) {
        var err = 'Please give all the following information: \n\n'+missing;
        alert(err);}
    else if (!mailchk(mailstr)) {var err = 'Invalid email address ' + email;alert(err);}
    else {document.forms[0].submit();}
}