//append data to url on click for tracking, eg #s=*
function addref(a,d){
	if(a.href.indexOf(d)<0)
		a.href+=d;
}

//logs #s=* from url, and then removes it
(function(){
	var l=_w.location,
		h=l.hash,
		a=h.split('s='); //assume referer is in last
	if(h.length<2)
		return;
	l.hash=a[0].substr(1);
	if(a.length>1)
		xlg('hash','s='+a[1]);
})();

//window open
function wo(a,b,c){
	var w=_w.open(a,b,c);
	if(w)w.focus();
}

//opens bookmark popup
function bkmk(){
	wo('https://www.prlog.org/share.html#u='+_e(_w.location.href)+'&t='+_e(_d.title));
	return false;
}

//track clicks in pr socialmedia
function clks(a){
	xlg('clksd','u='+_e(a.href));
}

//track clicks in biz socialmedia
function clkb(a){
	xlg('clkbd','u='+_e(a.href));
}

//used to show right side box news
function shownews(e,p,a){
	_w.location=p+e.value+a;
}

//social media
var smloaded;
function smload(xElement,sPageUrl,bHorizontal,sServices){ //element id, page url, horizontal/vertical, order=ftls
	if(smloaded)return;
	smloaded=1;
	var sBfr='',ii=0;
	for(;ii<sServices.length;ii++){
		switch(sServices[ii]){
			case 'f':
				sBfr+='<td class="smf"><div><iframe src="https://www.facebook.com/plugins/like.php?href='+sPageUrl+
				'&amp;send=false&amp;layout=button_count&amp;width=48&amp;show_faces=false&amp;action=like&amp;colorscheme=light&amp;font&amp;height=21"'+
				' scrolling="no" frameborder="0" allowTransparency="true"'+
				' style="border:none;overflow:hidden;width:'+(bHorizontal?87:48)+'px;height:21px"></iframe></div>';
				break;
			case 't':
				sBfr+='<td class="smt"><div><a href="https://twitter.com/share" class="twitter-share-button"'+
				' data-url="'+sPageUrl+'" data-count="'+(bHorizontal?'horizontal':'none')+'">Tweet</a></div>';
				break;
			case 'l':
				sBfr+='<td class="sml"><div style="height:21px;width:'+(bHorizontal?128:63)+'px">'+
				'<'+'script type="in/share" data-url="'+sPageUrl+'"'+(bHorizontal?' data-counter="right"':'')+'><'+'/script></div>';
				break;
			case 's':
				sBfr+='<td class="sms"><div class="st_sharethis_button" displayText="ShareThis"></div>';
				break;
		}
	}

	//script load
	function fxLoad(sUrl){
		var oScript=_d.createElement('script');
		oScript.async=true;
		oScript.src='https://'+sUrl;
		_t('head')[0].appendChild(oScript);
	}

	if(xElement=_i(xElement))
		xElement.innerHTML='<table cellpadding=0 cellspacing=0 style="display:inline-block"><tr>'+sBfr+'</tr></table>',
		fxLoad('ws.sharethis.com/button/buttons.js'),
		fxLoad('platform.twitter.com/widgets.js'),
		fxLoad('platform.linkedin.com/in.js');
}

//ajaxlog(section_name,post_data)
function xlg(sKey,sData){
	var r=new XMLHttpRequest();
	r.open('POST','/xlg/'+sKey,true);
	r.setRequestHeader('Content-type','application/x-www-form-urlencoded');
	r.send(sData);
}

//client side js error logging
var _jserr=0;
_w.onerror=function(sMsg,sUrl,iLine,iCol,oErr){
	//allow max 2 error to be logged
	//only log local errors
	//'ResizeObserver loop limit exceeded' error is benign and not caused by us
	if(sUrl && _jserr<2 && sUrl.indexOf('prlog')>0 && sMsg.indexOf('ResizeObserver')<0){
		_jserr++;
		xlg('jserr','P=0&F='+sUrl+':'+iLine+':'+iCol+'&M='+sMsg+'&S='+((oErr && oErr.stack)?oErr.stack:''));
	}
}