Trying to identify http links in Twitter export, and add the ability to click them

grailbird.js

Grailbird.data.tweets_2011_07 = 
 [ {
  
"source" : "<a href=\"http://www.google.com/\" rel=\"nofollow\">Google</a>",
  

"entities" : {
    
	"user_mentions" : [ {
      
		"name" : "YouTube",
      
		"screen_name" : "YouTube",
      
		"indices" : [ 10, 18 ],
      
		"id_str" : "10228272",
      
		"id" : 10228272
    } ],
    
	"media" : [ ],
    
	"hashtags" : [ ],
    

	"urls" : [ {

      		"indices" : [ 25, 52 ],
      
		"url" : "http://youtu.be/GpqsypjIyVQ",
      
		"expanded_url" : "http://youtu.be/GpqsypjIyVQ",
      
		"display_url" : "youtu.be/GpqsypjIyVQ"
    }
	]
  },


"geo" : {
  },
  
"id_str" : "97405776657784833",
  

"text" : "I liked a @YouTube video http://youtu.be/GpqsypjIyVQ?a Kid gets tricked",
  
"id" : 97405776657784833,
  
"created_at" : "Sat Jul 30 20:38:41 +0000 2011",
  

"user" : {
    
	"name" : "Jonas Anton \u00D6stman",
    "screen_name" : "jonasbits",
    "protected" : false,
    "id_str" : "123941128",
    "profile_image_url_https" : "https://si0.twimg.com/profile_images/841446861/msn_jonas_gas_sunfleet_normal.JPG",
    "id" : 123941128,
    "verified" : false
  }
},