Javascript vCard generator with QR code

http://jsfiddle.net/fayRk/8/

by totoe

HTML

<h1>Javascript vCard generator with QR code</h1>
<p>This is made after reading about <a href="http://jumpscan.com/">JumpScan</a>, a dedicated QR code reader for contact information.</p>
<h2>Add data</h2>
<form action="" method="post">
    <fieldset>
        <legend>You</legend>
    <p><label>First name</label><input type="text" name="first_name" size="40"></p>
    <p><label>Last name</label><input type="text" name="last_name" size="40"></p>
        <p><label>Birthday</label><input type="text" name="birthday" size="40"></p>
        <p><label>Gender</label><select name="gender">
            <option></option>
            <option value="Female">Female</option>
            <option value="Male">Male</option>
            </select></p>
    </fieldset>
    <fieldset>
        <legend>Home</legend>
        <p><label>Street and number</label><input type="text" name="home_street" size="40"></p>
        <p><label>City</label><input type="text" name="home_city" size="40"></p>
        <p><label>Postal code</label><input type="text" name="home_region" size="40"></p>
        <p><label>Region</label><input type="text" name="home_post" size="40"></p>
        <p><label>Country</label><input type="text" name="home_country" size="40"></p>
        <p><label>Telephone</label><input type="text" name="home_tel" size="40"></p>
        <p><label>E-mail</label><input type="text" name="home_email" size="40"></p>
        <p><label>Website</label><input type="text" name="home_url" size="40"></p>
    </fieldset>
    <fieldset>
        <legend>Work</legend>
        <p><label>Job title</label><input type="text" name="org_title" size="40"></p>
        <p><label>Name</label><input type="text" name="org_name" size="40"></p>
        <p><label>Street and number</label><input type="text" name="org_street" size="40"></p>
        <p><label>City</label><input type="text" name="org_city" size="40"></p>
        <p><label>Postal code</label><input type="text" name="org_region" size="40"></p>
       ...

CSS

body {background:#F15E22; color:#1D0A3F; }
h1, h2, h3 {color:#9CCB3C; }
h1 {font-size: 1.8em; }
h2 {font-size: 1.6em; }
h3 {font-size: 1.4em; }
fieldset {border:1em inset #A55125; padding: 0.5em; width:50% }
legend {font-size: 1.2em; color:#712773; }
label {display:block;}
input[type="button"] {border:5px outset #A55125; margin: 4px 0; padding: 1px; cursor:pointer; }

JavaScript

/**
* TODO:
* - add picture and company logo
*/
var vcard= {
    str_start:'BEGIN:VCARD\nVERSION:3.0\n',
    str_vcard:'BEGIN:VCARD\nVERSION:3.0\n',
    str_end:'\nEND:VCARD',
    goog_chart:'http://chart.googleapis.com/chart?cht=qr&chs=200x200&chl=',
    form:[],
    get_field: function(field){
        for(var i in vcard.form){
            if(vcard.form[i].name === field){ 
                return vcard.form[i].value.replace(/^\s+|\s+$/g,"");
            } 
        }
    },
    add_you: function(){
        var first_name = vcard.get_field("first_name"),
            last_name = vcard.get_field("last_name"),
            birthday = vcard.get_field('birthday'),
            gender = vcard.get_field('gender');
        
        vcard.str_vcard += 'N:'+last_name+';'+first_name+'\n'+
                            'FN:'+first_name+' '+last_name;
        // TODO convert date to american format
        if(birthday !== ''){ vcard.str_vcard += '\nBDAY:'+birthday; }
        
        if(gender !== ''){ vcard.str_vcard += '\nX-GENDER:'+gender; }
    },
    add_address: function(){
        var home_street = vcard.get_field("home_street"),
            home_city = vcard.get_field("home_city"),
            home_region = vcard.get_field("home_region"),
            home_post = vcard.get_field("home_post"),
            home_country = vcard.get_field("home_country"),
            org_street = vcard.get_field("org_street"),
            org_city = vcard.get_field("org_city"),
            org_region = vcard.get_field("org_region"),
            org_post = vcard.get_field("org_post"),
            org_country = vcard.get_field("org_country");
        
        if(home_street+home_city+home_region+home_post+home_country !== ''){
            vcard.str_vcard += '\nADR;TYPE=home:;;'+home_street+';'+home_city+';'+home_region+
                            ';'+home_post+';'+home_country;
        }
        if(org_street+org_city+org_region+org_post+org_country !== ''){
            vcard.str_vcard +=...