var sect = document.URL.split("/");
var keywords = '';
var adTile 	= 0;
var adId	= 0;
var ord 	= Math.random() * 1000000000000000000;


// example TTR dart tag
//ls.site2_006.opus/environment/news;

var sitekey;
var domainRegEx = /newsarama\.com|space\.com|livescience\.com/;
domainRegEx = document.domain.match(domainRegEx)[0];
switch(domainRegEx){
	case 'livescience.com': sitekey = "ls";
		break;
	case 'newsarama.com': sitekey = "nr";
		break;
	case 'space.com': sitekey = "sp";
		break;
}
sitekey += ".site2_006.opus/";


function getKeywordList(){
	var k = '';
	var m = document.getElementsByTagName('meta');
	for(var i in m){
		if(m[i].name == 'keywords' && m[i].content.length > 0){
			k = m[i].content.replace(/"/g,"");
			k = k.replace(/, /g,";kw=");
			k = k.replace(/,/g,";kw=");
			k = k.replace(/#/g,"");
			k = ";kw="+k.replace(/ /g,"_");
		}
	}
	return k;
}


/// recuresive for old pages ///
function changeAd(target,pos,w,h) {
	changeDartAd(target,w,h);
}


function changeDartAd(target,w,h) {
	var ih = h + 16, iw = w + 16, key;
	var ad_obj = $(target);
	try{
		if(dartTag.split(".").length < 2){
			key = sitekey+dartTag+keywords;
		}else{
			key = dartTag+keywords;
		}

		var str = '<iframe src="/common/inc/mod_adblock.php?dartTag='+key+'&pos='+w+'x'+h+'&ord='+ord+'&dom='+document.domain+'" width="'+iw+'" height="'+ih+'" frameborder="0" scrolling="no"></iframe>';
		ad_obj.update(str);
	}catch(e){}
}


function refreshAds(){
	for(i = 1; i <= adTile; i++){
		//adSpot[i].pos += 1;
		if(adSpot[adTile].sz.split(",").length == 1){
			var dim =  adSpot[adTile].sz.split("x");
			ifw = dim[0];
			ifh = dim[1];
		}else{
			ifw = '';
			ifh = '';
		}
		var target = 'adcontainer_'+i;
		/*
		var str = '/common/inc/adblock.php?key='+adObj.tag+'&sz='+adObj.sz+'&ord='+ord+'&dom='+document.domain+'&tile='+i+'&pos='+adObj.pos;
		*/
		var str = '<div id="adcontainer_'+i+'" class="clearfix"><iframe id="adframe_'+i+'" src="/common/inc/adblock.php?key='+adSpot[i].tag+'&sz='+adSpot[i].sz+'&ord='+ord+'&dom='+document.domain+'&tile='+i+'&pos='+adSpot[i].pos+'" width="'+ifw+'" height="'+ifh+'" marginwidth="0" marginheight="0"  frameborder="0" scrolling="no"></iframe></div>';
		var p = $(target).ancestors()[0];
		p.innerHTML = str;
	}
}


function resizeAdBlock(tile, w, h){
	var target = $('adframe_'+tile);
	$(target).width = w;
	$(target).height = h;
}


function rebuildAd(tile,advert){
	$('adcontainer_'+tile).innerHTML = unescape(advert);
}


function DartAd(args){
	var key, ifw, ifh;
	adTile++;

	if(typeof adSpot == 'undefined'){
		adSpot = new Object();
		keywords = getKeywordList();
	}

	if(typeof dartTag == 'undefined'){
		dartTag = generateTag();
	}
	if(dartTag.split(".opus/").length < 2){
		key = sitekey + dartTag + keywords;
	}else{
		key = dartTag + keywords;
	}

	//TEST DART//
	//key = sitekey + 'adtest/home' + keywords;

	adSpot[adTile] = {sz:args, pos:1, tag: key};

	var dim =  args.split("x");
	if(args.split(",").length == 1){
		ifw = dim[0];
		ifh = dim[1];
		dim = "style='width: "+ifw+"px; height: "+ifh+"px; '";
	}
	else{
		dim = "style='width: "+dim[0]+"px; '";
		ifw = 10;
		ifh = 10;
	}

	if(typeof adFrame == 'undefined'){

		if ((!document.images && navigator.userAgent.indexOf("Mozilla/2.") >= 0)  || navigator.userAgent.indexOf("WebTV")>= 0){
			document.write('<div id="adcontainer_'+adTile+'" class="clearfix"><a href="http://ad.doubleclick.net/jump/'+ adSpot[adTile].tag +';pos=1;tile='+ adTile +';sz='+ adSpot[adTile].sz +';ord=' + ord + '?" target="_blank">');

			document.write('<img src="http://ad.doubleclick.net/ad/'+ adSpot[adTile].tag +';pos='+ 1 +';tile='+ adTile +';sz='+ adSpot[adTile].sz +';ord=' + ord + '?" /></a></div>');
		}
		else{
			document.write('<div id="adcontainer_'+adTile+'" class="clearfix"><scr'+'ipt type="text/javascript" src="http://ad.doubleclick.net/adj/'+ adSpot[adTile].tag +';pos=1;tile='+ adTile +';sz='+ adSpot[adTile].sz +';ord=' + ord + '?" ><\/script></div>');
		}

		/*
		var str = '<iframe id="adcontainer_'+adTile+'" src="/common/inc/adblock.php?key='+adSpot[adTile].tag+'&sz='+adSpot[adTile].sz+'&ord='+ord+'&dom='+document.domain+'&tile='+adTile+'&pos='+adSpot[adTile].pos+'" width="'+ifw+'" height="'+ifh+'" marginwidth="0" marginheight="0"  frameborder="0" scrolling="no"></iframe>';
		document.write(str);
		*/

		if(document.domain == 'space.com' && adTile == 1){
			if(dartTag.split("video").length < 2 && sitepage.split("video").length < 2 ){
			document.write('<scr'+'ip type="text/javascript" src="http://ad.doubleclick.net/adj/'+ adSpot[adTile].tag +';dcopt=ist;sz=1x1;ord=' + ord + '?" ><\/SCRIPT>');
			}
		}
	}
	else{
		var str = '<iframe id="adcontainer_'+adTile+'" src="/common/inc/adblock.php?key='+adSpot[adTile].tag+'&sz='+adSpot[adTile].sz+'&ord='+ord+'&dom='+document.domain+'&tile='+adTile+'&pos='+adSpot[adTile].pos+'" width="'+ifw+'" height="'+ifh+'" marginwidth="0" marginheight="0"  frameborder="0" scrolling="no"></iframe>';
		$(adFrame).innerHTML = str;
	}
}


function generateTag(){
	var s = 'general', p = 'home', retag;
	var r = document.referrer.split("/");

	if(sect[3].split(".").length < 2 ){
		switch(sect[3]){

			case 'php': 		p = sect[4]; break;
			case 'common': 		s = sect[4]; p = sect[5]; break;
			// Space.com
			case 'missionlaunches':		s = 'spaceflight'; break;
			case 'searchforlife': 		s = 'seti'; break;
			case 'scienceastronomy': 	s = 'science'; break;
			case 'businesstechnology': 	s = 'technology'; break;
			case 'spacewatch': 			s = 'nightsky'; break;
			case '': 					s = 'homepage'; break;
			default: if(document.domain == 'space.com'){ s = sect[3]; break; }else{ s = 'general'; p='home' }
		}
	}

	if(document.domain == 'space.com'){
		if(sect.length > 4 && sect[4].split(".").length >= 2 && sect[4].split(".")[1] == 'html') p = 'news';
	}else{
		if(sect.length > 4){
			if(typeof section != 'undefined' && section != '' && sect[3] != 'common'){
				s = (section == 'home')? 'homepage' : section;
				if(sect[4] != ""){
					if(sect[4].split(".").length < 2){
						p = sect[4];
					}else if(sect[4].split(".").length >= 2 && sect[4].split(".")[1] == 'html') {
						p = 'news';
					}
				}
			}
			else if(typeof section == 'undefined'){
				s = sect[3];
			}
		} else if(sect.length <= 4){
			s = 'homepage';
		}
	}

	switch(p){
	// click2enlarge Page //
		case 'multimedia' :
			p = 'galleries'; break;
	// Topic Page //
		case 'topic' :
			p = 'home'; break;
	}


	// ------- / Album Pages / --------- //
	if(document.URL.split("album.php").length == 2) p = 'bookvieweralbum';
	if(document.URL.split("album_view.php").length == 2) p = 'bookviewerapplication';

	// ------- / Blog Pages / --------- //
	try{if(section == 'blog'){ s = 'blog'; p='home'; }}catch(e){ }

	// ------- / Video rewrite / --------- //
	if(document.domain == 'newsarama.com'){
		if(typeof section != 'undefined' && section == 'video'){ s = 'comics'; };
		retag = s+'/'+p;
		if(s == 'comics'){ retag += ';kw=sdcc;kw=comic-con;kw=sandiego'; }
	} else {
		retag = s+'/'+p;
	}


	if(retag.split(".").length >= 2){
		retag = retag.split(".")[0];
	}

	return retag;
}


function removeAd(){
	if(ie){
		$('inter-advertisement').style.display="none";
	}else{
		Element.remove('inter-advertisement');
	}
	var main = $('main');
	if($('main') != null){
		$('main').style.display="block";
	}
}


function skipAd(){
	if(ie){
		$('inter-advertisement').style.display="none";
	}else{
		Element.remove('inter-advertisement');
	}
	var main = $('main');
	if($('main') != null){
		$('main').style.display="block";
	}
}