if(typeof share_url=='undefined'||share_url=='') share_url=location.href;
if(typeof share_title=='undefined'||share_title=='') share_title=document.title;
var shareloaded=false;
var sharenum=0;
var shareoptions=new Array();

function getDesc(){
  var metas = document.getElementsByTagName('meta');
  var mLen=metas.length;
  for(var i=0; i<mLen; i++)
  {
    if(metas[i].getAttribute('name')!=null && metas[i].getAttribute('name').toLowerCase() == 'description'){
      return metas[i].getAttribute('content');
    }
  }
  return "";
  //or empty string if you prefer
}

function facebook_click() {
    window.open('http://www.facebook.com/sharer.php?u='+encodeURIComponent(share_url)+'&t='+encodeURIComponent(share_title),'sharer','toolbar=0,status=0,width=626,height=436');
    return false;
}


Event.observe(window,'load',function(){
    var shareicons;

    shareicons='<div id="shareicons" style="border: 1px solid #d3d3d3;padding: 5px; background-color:#FFFFFF; display:none">';
    shareicons+='<table border="0" cellspacing="0" cellpadding="2" style="text-align:left">';


  
    var desc = getDesc();
    shareicons+='<tr><td><a href="http://www.facebook.com/sharer.php?share_url='+encodeURIComponent(share_url)+'&share_title='+encodeURIComponent(share_title)+'" class="bookmarklink" target="_blank" onclick="return facebook_click()"><img src="http://media.canon-asia.com/images/bookmark/facebook.gif" border="0" align="absmiddle"> Facebook</a></td></tr>';
    shareicons+='<tr><td><a href="http://twitter.com/home?status='+encodeURIComponent(share_title.replace(/ - Canon[^-]*$/i, ''))+'+'+encodeURIComponent(share_url)+'+%23Canon" class="bookmarklink" target="_blank"><img src="http://media.canon-asia.com/images/bookmark/twitter.gif" border="0" align="absmiddle"> Twitter</a></td></tr>';
    shareicons+='<tr><td><a href="http://del.icio.us/post?v=2&url='+encodeURIComponent(share_url)+'&title='+encodeURIComponent(share_title)+'" class="bookmarklink" target="_blank"><img src="http://media.canon-asia.com/images/bookmark/delicious.gif" border="0" align="absmiddle"> Delicious</a></td></tr>';
    shareicons+='<tr><td><a href="http://digg.com/submit?phase=2&url='+encodeURIComponent(share_url)+'&title='+encodeURIComponent(share_title)+'" class="bookmarklink" target="_blank"><img src="http://media.canon-asia.com/images/bookmark/dig.gif" border="0" align="absmiddle"> Digg</a></td></tr>';
    shareicons+='<tr><td><a href="http://www.stumbleupon.com/submit?url='+encodeURIComponent(share_url)+'&title='+encodeURIComponent(share_title)+'" class="bookmarklink" target="_blank"><img src="http://media.canon-asia.com/images/bookmark/stumbleupon.gif" border="0" align="absmiddle"> StumbleUpon</a></</td></tr>';    

        shareicons+='<tr><td><a href="#" class="bookmarklink" onClick=\"window.open(\'/internal/emailafriend/?lang=VN&url='+encodeURIComponent(share_url)+'&title='+encodeURIComponent(share_title)+'&desc='+encodeURIComponent(desc)+'\',\'mywindow\',\'width=400,height=640,top=200,left=200\');return false\"><img src="http://media.canon-asia.com/images/bookmark/email.gif" border="0" align="absmiddle"> Email cho bạn bè</a></</td></tr>';
        


    shareicons+='</table>';
    shareicons+='</div>';
    var txt = document.createElement('div');
    txt.innerHTML=shareicons;
    document.body.appendChild(txt);

    for(i=0;i<sharenum;i++){
        new Tooltip('sharelink'+i, 'shareicons', shareoptions[i]);
    }

    shareloaded=true;
});


function create_socialbookmark(share_text, socialbookmark) {
  
    var options = Object.extend({
      pre_text: '',
      post_text: '',
      image: 'http://media.canon-asia.com/images/bookmark/share.gif',
      className: '',
      hook: {target:'topLeft', tip:'bottomLeft'},
      offset: {x:0, y:0},
      delay:{end:0.3}
    }, arguments[1] || {});
    var sharelink = 'sharelink'+sharenum;
    shareoptions[sharenum]=options;
    sharenum+=1;


    document.write('<span class="noprint">');
    if(options.pre_text!='')
        document.write(options.pre_text);
    document.write('<span id="'+sharelink+'" class="'+options.className+'" style="cursor:pointer;cursor:hand">');
    if(options.image!='')
        document.write('<img src="'+options.image+'">&nbsp;');
    if(typeof share_text!='undefined'&&share_text!='')
        document.write(share_text);
    document.write('</span>');
    if(options.post_text!='')
        document.write(options.post_text);
    document.write('</span>');

    if(shareloaded){
        new Tooltip(sharelink, 'shareicons', options);
    }
  
}