// http://kawaguchi.wonder-mix.com/2007/05/18-160832.html
function relative_time(time_value) { 
	time_values = time_value.split(" "); 
	time_value = time_values[1]+" "+time_values[2]+", "+time_values[5]+" "+time_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 '1分以内'; 
	} else if(delta < 120) { 
		return '約1分前'; 
	} else if(delta < (45*60)) { 
		return (parseInt(delta / 60)).toString() + '分前'; 
	} else if(delta < (90*60)) { 
		return '約1時間前'; 
	} else if(delta < (24*60*60)) { 
		return '約' + (parseInt(delta / 3600)).toString() + '時間前'; 
	} else if(delta < (48*60*60)) { 
		return '昨日'; 
	} else { 
		return (parseInt(delta / 86400)).toString() + '日前'; 
	} 
} 

function twitterCallback(obj) { 
	var t = document.getElementById('twtr1');
	for ( i=0; i<obj.length; i++) {
		t.innerHTML += '<p class="list">' + obj[i].text + '&nbsp;：&nbsp; ' + relative_time(obj[i].created_at) + '</p>'; 
	}
}

function twitterCallback2(obj) { 
	var t = document.getElementById('twtr2');
	for ( i=0; i<obj.length; i++) {
		t.innerHTML += '<p class="list">' + obj[i].text + '&nbsp;：&nbsp; ' + relative_time(obj[i].created_at) + '</p>'; 
	}
}

function twitterCallback3(obj) { 
	var t = document.getElementById('twtr3');
	for ( i=0; i<obj.length; i++) {
		t.innerHTML += '<p class="list">' + obj[i].text + '&nbsp;：&nbsp; ' + relative_time(obj[i].created_at) + '</p>'; 
	}
}

function twitterCallback4(obj) { 
	var t = document.getElementById('twtr4');
	for ( i=0; i<obj.length; i++) {
		t.innerHTML += '<p class="list">' + obj[i].text + '&nbsp;：&nbsp; ' + relative_time(obj[i].created_at) + '</p>'; 
	}
}

function twitterCallback5(obj) { 
	var t = document.getElementById('twtr5');
	for ( i=0; i<obj.length; i++) {
		t.innerHTML += '<p class="list">' + obj[i].text + '&nbsp;：&nbsp; ' + relative_time(obj[i].created_at) + '</p>'; 
	}
}

function twitterCallback6(obj) { 
	var t = document.getElementById('twtr6');
	for ( i=0; i<obj.length; i++) {
		t.innerHTML += '<p class="list">' + obj[i].text + '&nbsp;：&nbsp; ' + relative_time(obj[i].created_at) + '</p>'; 
	}
}