$(document).ready(function() { 
	$('a[rel=external], a[href$=pdf], a[href^=http]').attr('target', '_blank');


	$('input[type="text"], input[type="password"]').addClass("idleField").focus(function() {
		idleFieldOnFocus(this);
	});
	$('input[type="text"], input[type="password"]').blur(function() {
		idleFieldOnBlur(this);
	});

	if($('#sub-nav ul li').length<1)
		$('#sub-nav').hide();

});

function idleFieldOnFocus(elem) {
	$(elem).removeClass("idleField").addClass("focusField");
    if (elem.value == elem.defaultValue){ 
    	elem.value = '';
	}
	if(elem.value != elem.defaultValue){
		elem.select();
	}
}

function idleFieldOnBlur(elem) {
	$(elem).removeClass("focusField").addClass("idleField");
	if ($.trim(elem.value) == ''){
		elem.value = (elem.defaultValue ? elem.defaultValue : '');
	}
}

function renderTwitter(twitters) {
  var statusHTML = [];
  for (var i=0; i<twitters.length; i++) {
    var username = twitters[i].user.screen_name;
    var status = twitters[i].text.replace(/((https?|s?ftp|ssh)\:\/\/[^"\s\<\>]*[^.,;'">\:\s\<\>\)\]\!])/g, function(url) {
      return '<a href="'+url+'">'+url+'</a>';
    }).replace(/\B@([_a-z0-9]+)/ig, function(reply) {
      return  reply.charAt(0)+'<a href="http://twitter.com/'+reply.substring(1)+'" rel="external" target="_blank">'+reply.substring(1)+'</a>';
    });
    statusHTML.push('<li><span>'+status+'</span> <a style="font-size:85%" href="http://twitter.com/'+username+'/statuses/'+twitters[i].id+'" rel="external" target="_blank">'+getRelativeTime(twitters[i].created_at)+'</a></li>');
  }
  document.getElementById('twitter_update_list').innerHTML = statusHTML.join('');
}

function getRelativeTime(time_value) {
  var values = time_value.split(" ");
  time_value = values[1] + " " + values[2] + ", " + values[5] + " " + values[3];
  var parsed_date = Date.parse(time_value);
  var relative_to = (arguments.length > 1) ? arguments[1] : new Date();
  var delta = parseInt((relative_to.getTime() - parsed_date) / 1000);
  delta = delta + (relative_to.getTimezoneOffset() * 60);

  if (delta < 60) {
    return 'less than a minute ago';
  } else if(delta < 120) {
    return 'about a minute ago';
  } else if(delta < (60*60)) {
    return (parseInt(delta / 60)).toString() + ' minutes ago';
  } else if(delta < (120*60)) {
    return 'about an hour ago';
  } else if(delta < (24*60*60)) {
    return 'about ' + (parseInt(delta / 3600)).toString() + ' hours ago';
  } else if(delta < (48*60*60)) {
    return '1 day ago';
  } else {
    return (parseInt(delta / 86400)).toString() + ' days ago';
  }
}