Remove the root element of a JSON object, see: http://jsfiddle.net/kamranayub/72dm2/

removeRoot.js

var rootElementJson = {
    root: {
        name: "Foo",
        person: true
    }
};

var removeRootElement = function (obj) {
    var numKeys = 0,
        rootKey;
    
    // Iterate through keys in object and confirm there's only a single root
    for (var key in obj) {
        
        // Skip built in
        if (!obj.hasOwnProperty(key)) continue;
        
        // Assign current key as root
        rootKey = key;
        
        // Increment key counter
        numKeys++;
        
        // Stop if there's more than one key
        if (numKeys === 2) { break; }
    }
    
    // If there is a single root, transfer its contents (if applicable) to
    // a new object to return
    if (numKeys === 1) {
        var newObj = {},
            rootObj = obj[rootKey];
        
        if (typeof rootObj === "object") {
            for (var key in rootObj) {                
                if (rootObj.hasOwnProperty(key)) {
                    newObj[key] = rootObj[key];
                }
            }
            
            return newObj;
        }
    }
    
    return obj;
};