MktoForms2 :: Parse Hidden Name-Value from Single Cookie

parse-value-single-cookie.html

<script src="https://cdnjs.cloudflare.com/ajax/libs/Cookies.js/1.2.1/cookies.min.js"></script>
<script src="//app-sj01.marketo.com/js/forms2/js/forms2.min.js"></script>
<form id="mktoForm_245"></form>
<script>MktoForms2.loadForm("//app-sj01.marketo.com", "410-XOR-673", 245,
function(form) 
{
    
        /* Utility fn to transfer ownprops from object to a new obj, massaging key names */
    var objectMapToObject = function(srcObj,keyMap) {
        
        var keyMap = keyMap || {};
        var destObj = {};
        
        for ( var key in srcObj ) {
            if ( !srcObj.hasOwnProperty(key) ) continue;
    
            destObj[keyMap[key] || key] = srcObj[key];
        }
        
        return destObj;
    }
    
    var __utmz = Cookies.get('__utmz'),
        __utmzComponents = {};
    
    // split cookie string by expected delimiters
    var __utmzNameValueSeries = __utmz.split(/=|\|/);
    
    // further break down to name-value
    for ( var i=0, imax = __utmzNameValueSeries.length; i < imax ; i++ ) {
    
        // we only want the last word in the name (viz. utmcsr)
        var name = __utmzNameValueSeries[i++].match(/\w*$/)[0],
            value = __utmzNameValueSeries[i];
    
        __utmzComponents[name] = value;    
    
    }
    
    var mktoFields = objectMapToObject(__utmzComponents,{ 
        utmcsr : 'Google_UTM_CSR',
        utmabc : 'Google_Happy_Face'
    });   
    
    // now add to form as hidden fields
    form.addHiddenFields(mktoFields);
            
});        
</script>