/*
 * NAME:	jQuery Twitter Feed Function
 * AUTHOR:	Jay Blanchard
 * DATE:	2011-09-25
 * USAGE:	Include to call tweets into a web page
 */


$(document).ready(function() {

   $.getJSON('http://twitter.com/statuses/user_timeline/JaniKingUK.json?callback=?' ,function(data){
        for(var i=0;i<data.length;i++){
        	var tweeter = data[i].from_user;
        	var tweetText = data[i].text;
        	var tweetText = tweetText.substring(0, 139);
        	
        	tweetText = tweetText.replace(/http:\/\/\S+/g, '<a href="$&" target="_blank">$&</a>');
			tweetText = tweetText.replace(/(@)(\w+)/g, ' $1<a href="http://twitter.com/$2" target="_blank">$2</a>');
			tweetText = tweetText.replace(/(#)(\w+)/g, ' $1<a href="http://search.twitter.com/search?q=%23$2" target="_blank">$2</a>');
            $('#tw').append('<li class="tweet"><div class="tweetBody">'+tweetText+'</div></li>');    
        }
   });
   
   
   function autoScroll() {
   	var itemHeight = $('#tw li').outerHeight();
   		/* calculte how much to move the scroller */
       var moveFactor = parseInt($('#tw').css('top')) + itemHeight;
       /* animate the carousel */
       $('#tw').animate(
           {'top' : moveFactor}, 'slow', 'linear', function(){
               /* put the last item before the first item */
        	   $("#tw li:first").before($("#tw li:last"));
               /* reset top position */              
               $('#tw').css({'top' : '-5em'});
       });
   };
   /* make the carousel scroll automatically when the page loads */
   var moveScroll = setInterval(autoScroll, 6000);
});