function insertSiblingBefore(oldSibling, newSibling) {
    oldSibling.parentNode.insertBefore(newSibling, oldSibling);
}

function getOffset(n) {
    switch(Math.round(n*2)/2){
        case 0:
            return [-75, -110];
        case 0.5:
            return [-59, -126];
        case 1:
            return [-59, -110];
        case 1.5:
            return [-44, -126];
        case 2:
            return [-44, -110];
        case 2.5:
            return [-29, -126];
        case 3:
            return [-29, -110];
        case 3.5:
            return [-15, -126];
        case 4:
            return [-15, -110];
        case 4.5:
            return [0, -126];
        case 5:
            return [0, -110];
    }
}

function formatnumber(num) {
  if (isNaN(num)) { num = 0;}
/*
    var p = num.toFixed(2).split(".");
    return  p[0].split("").reverse().reduce(function(acc, num, i, orig) {
        return  num + (i && !(i % 3) ? "," : "") + acc;
    }, "") ;//+ "." + p[1]; */
	num += '';
  x = num.split('.');
	x1 = x[0];
	x2 = x.length > 1 ? '.' + x[1] : '';
	var rgx = /(\d+)(\d{3})/;
	while (rgx.test(x1)) {
		x1 = x1.replace(rgx, '$1' + ',' + '$2');
	}
	return x1 + x2;
}

function jsonCallBack(root, dom) {

    var rating = 0;
    var ratingCount = 0;
    var viewCount = 0;
    var strRatingHTML;
    try {
        rating = root.feed.entry[0].gd$rating.average;
        ratingCount  = root.feed.entry[0].gd$rating.numRaters;
    } catch(e) {
        rating = 0;
        ratingCount = -1;
    }
    try {
        viewCount  = root.feed.entry[0].yt$statistics.viewCount;
    } catch(e) {
        viewCount  = 0;
    }

    if ( rating >= 0 ) {
        rating = Math.round(rating*10)/10;
        //-strRatingHTML = '<div><div style="float: left; background: transparent url(\'/images/youtube_rate.png\') no-repeat ' + getOffset(rating)[0] + 'px ' + getOffset(rating)[1] + 'px; width: 75px; height: 16px; margin: 3px 5px;"></div>';
        //-strRatingHTML += ' <span style="color:#F00; font-size:12px; float:left; margin-left:20px; font-weight:bold; line-height:2em">&nbsp;</span><span style="color:#999; float:right; padding-right:10px; line-height:2em; text-align:right">เปิดดูแล้ว  '+formatnumber(parseFloat(viewCount))+' ครั้ง</span></div>';
        strRatingHTML = '<div><span style="color:#F00; font-size:12px; float:left; margin-left:20px; font-weight:bold; line-height:2em">&nbsp;</span><span style="color:#999; float:right; padding-right:10px; line-height:2em; text-align:right">เปิดดูแล้ว  '+formatnumber(parseFloat(viewCount))+' ครั้ง</span></div>';
    } else {
        strRatingHTML = "unable to find rating";
    }

    //alert(dom, strRatingHTML);

    $("#"+dom).html(strRatingHTML);
}

function youtube_rating(vid, dom) { //mAFpxEi4Rqg

    $("#ajax-youtube-rate").html('<div><div style="float: left; background: transparent url(\'/images/youtube_rate.png\') no-repeat -75px -110px; width: 75px; height: 16px; margin: 3px 5px;"></div> <span style="color:#F00; font-size:12px; float:left; margin-left:20px; font-weight:bold; line-height:2em">&nbsp;</span><span style="color:#999; float:right; padding-right:10px; line-height:2em; text-align:right">เปิดดูแล้ว  0 ครั้ง</span></div>');

    $.getJSON('http://gdata.youtube.com/feeds/api/videos?v=2&max-results=1&safeSearch=none&q='+vid+'&alt=json', function(data) {
        jsonCallBack(data, dom);
    });
    //alert("strRatingHTML");

}