Convert a string to an object and add its value

dotNotationStringToObject

/**
 * Convert a string to an object and add its value
 * "formItem.address" -> {"formItem":{"address":"address value"}}
 * @param {string} dotNotationString - A string that contains dots that whould map to an object key.
 * @param {string} val               - Value to be added to the key
 */
var dotNotationStringToObject = function( dotNotationString, val ){
	var str = "{";
	var strEnd = "}";
	var obj = {};
	var stringArray = dotNotationString.split(/\./);
	if( dotNotationString.indexOf(".") === -1 ){
		obj[dotNotationString] = val;
	} else {
		while( stringArray.length > 1) {
			str += '"' + stringArray.shift() + '":{';
			if( stringArray.length > 1 ) { strEnd += '}'; }
		}
		str += '"' + stringArray.shift() + '":"' + val + '"}' + strEnd;
		obj = JSON.parse( str );
	}
	return obj;
};