var blogTitleWelkame= document.getElementsByTagName("title").item(0).innerHTML;


var linkObjWelkame = document.getElementsByTagName("link");
var atomreg = new RegExp("atom","i");
var rssreg = new RegExp("rss","i");
var rssURLWelkame;
var node = linkObjWelkame;

for(var i in node){
	var type = node[i].type;
	var matchAtom = atomreg.exec(type);
	var matchRss = rssreg.exec(type);
	if(matchRss){
		rssURLWelkame = node[i].getAttribute("href");
		break;
	}else if(matchAtom){
		rssURLWelkame = node[i].getAttribute("href");
		break;
	}
	//node= node.nextSibling;
}

function showWelkameFlash(layerNum){

	var embedobj = document.getElementsByTagName("EMBED");
	for(var i =0;i<embedobj.length;i++){
		if(embedobj[i].getAttribute("wmode")!="transparent")embedobj[i].style.visibility="hidden";
	}
	if(navigator.userAgent.indexOf("MSIE") >= 0){
		var objectobj = document.getElementsByTagName("OBJECT");
		for(var i =0;i<objectobj.length;i++){
			var cnt=0;
			for(var s =0;s<objectobj[i].childNodes.length;s++){
				if(objectobj[i].childNodes[s].getAttribute("value")=="transparent"){
					cnt++;
				}
			}
			if(cnt==0)objectobj[i].style.visibility = "hidden";
		}
	}
	
	if (layerNum == 1) {
		var file = "http://www.nhk.or.jp/welkame-pre/blogparts/welkame_blopa_counter.swf?" + new Date().getTime();
	} else {
		var file = "http://www.nhk.or.jp/welkame-pre/blogparts/welkame_blopa_action.swf?" + new Date().getTime();
	}

	var ver = "8,0,0,0";
	
	if(navigator.appName.indexOf("Microsoft") != -1){
		var br = "ie";
	}else{
		var br = "other";
	}
	var arrayPageSize = getPageSizeWelkame();
	var arrayPageScroll = getPageScrollWelkame();
	var swfWidth= (arrayPageSize[0]+arrayPageSize[4])+'px';
	var swfHeight = arrayPageSize[3]+'px';
	var objBody = document.body;
	var objOverlay = document.createElement("div");
	objOverlay.setAttribute('id','overlay');
	objOverlay.style.display = 'block';
	objOverlay.style.position = 'absolute';
	objOverlay.style.top = "0px";
	objOverlay.style.left = "0px";
	objOverlay.style.background = "none";
	objOverlay.style.zIndex = '1';
 	objOverlay.style.width = swfWidth;
	objOverlay.style.height =swfHeight;
	//alert(arrayPageSize[0]+arrayPageSize[4]+'px:'+arrayPageSize[3]+'px');
	objBody.insertBefore(objOverlay, objBody.firstChild);
	var myTag= '<object classid="clsid:d27cdb6e-ae6d-11cf-96b8-444553540000" codebase="http://fpdownload.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version='+ver+'" width="'+swfWidth+'" height="'+swfHeight+'" id="welkameOverlay" align="middle"><param name="allowScriptAccess" value="always" /><param name="movie" value="'+file+'" /><param name="quality" value="best" /><param name="salign" value="TR" /><param name="wmode" value="transparent" /><param name="bgcolor" value="#ffffff" /><param name="FlashVars" value="rss='+rssURLWelkame+'" /><embed src="'+file+'" quality="best" salign="TL" wmode="transparent" bgcolor="#ffffff" FlashVars="id='+blogTitleWelkame+'&rss='+rssURLWelkame+'" width="'+swfWidth+'" height="'+swfHeight+'" name="welkameOverlay" id="welkameOverlay" align="middle" allowScriptAccess="always" type="application/x-shockwave-flash" pluginspage="http://www.macromedia.com/go/getflashplayer" /></embed></object>';

	//objOverlay.innerHTML = myTag;
	setTimeout(function(){objOverlay.innerHTML = myTag},1);
	scrollToTopAnime();

	window.onresize = function(){
		var arrayPageSize = getPageSizeWelkame();
		var dx=0;
		if(navigator.appName.indexOf("Microsoft") != -1){
			var br = "ie";
		}else{
			var br = "other";
			if(arrayPageSize[1] > arrayPageSize[3]){
				dx=-16;
			}else{
				dx=0;
			}
		}
	 	objOverlay.style.width = arrayPageSize[2]+dx+'px';
		objOverlay.style.height = arrayPageSize[3]+'px';
	}
	window.onscroll = function(){
		window.scrollTo(0, 0);
	}

}



/****************************************************************************/
/* functions                                                                 */
/****************************************************************************/
// getPageScrollWelkame()
function getPageScrollWelkame(){
	var yScroll;
	if (self.pageYOffset) {
		yScroll = self.pageYOffset;
	} else if (document.documentElement && document.documentElement.scrollTop){	 // Explorer 6 Strict
		yScroll = document.documentElement.scrollTop;
	} else if (document.body) {// all other Explorers
		yScroll = document.body.scrollTop;
	}
	arrayPageScroll = new Array('',yScroll) 
	return arrayPageScroll;
}

function checkBrowserWelkame(){
	var uName = navigator.userAgent;
	if (uName.indexOf("Safari") > -1) return "Safari";
	if (uName.indexOf("MSIE") > -1) return "MSIE";
	return "Netscape";
}

// getPageSizeWelkame()
function getPageSizeWelkame(){
	
	var xScroll, yScroll;
	
	if (window.innerHeight && window.scrollMaxY) {	
		xScroll = document.body.scrollWidth;
		yScroll = window.innerHeight + window.scrollMaxY;
	} else if (document.body.scrollHeight > document.body.offsetHeight){ // all but Explorer Mac
		xScroll = document.body.scrollWidth;
		yScroll = document.body.scrollHeight;
	} else { // Explorer Mac...would also work in Explorer 6 Strict, Mozilla and Safari
		xScroll = document.body.offsetWidth;
		yScroll = document.body.offsetHeight;
	}
	
	var windowWidth, windowHeight;
	if (self.innerHeight) {	// all except Explorer
		windowWidth = self.innerWidth;
		windowHeight = self.innerHeight;
	} else if (document.documentElement && document.documentElement.clientHeight) { // Explorer 6 Strict Mode
		windowWidth = document.documentElement.clientWidth;
		windowHeight = document.documentElement.clientHeight;
	} else if (document.body) { // other Explorers
		windowWidth = document.body.clientWidth;
		windowHeight = document.body.clientHeight;
	}	
	
	// for small pages with total height less then height of the viewport
	if(yScroll < windowHeight){
		pageHeight = windowHeight;
	} else { 
		pageHeight = yScroll;
	}

	// for small pages with total width less then width of the viewport
	if(xScroll < windowWidth){	
		pageWidth = windowWidth;
	} else {
		pageWidth = xScroll;
	}
	var browser = checkBrowserWelkame();
	var dX = 0;
	if(browser == "Netscape" || browser == "Safari"){
		dX = -16;
	}
	arrayPageSize = new Array(pageWidth,pageHeight,windowWidth,windowHeight,dX) 
	return arrayPageSize;
}

var agt = navigator.userAgent.toLowerCase();
var is_ie = ((agt.indexOf("msie") != -1) && (agt.indexOf("opera") == -1));
var is_gecko = (agt.indexOf('gecko') != -1);
var is_opera = (agt.indexOf("opera") != -1);

//getElementStyleWelkame
function getElementStyleWelkame(targetElm,IEStyleProp,CSSStyleProp) {
	var elem = targetElm;
	if (elem.currentStyle) {
		return elem.currentStyle[IEStyleProp];
	} else if (window.getComputedStyle) {
		var compStyle = window.getComputedStyle(elem,"");
		return compStyle.getPropertyValue(CSSStyleProp);
	}
}//---End Function

function getElementPositionWelkame(that) {
	var targetEle = that;//that is element you want to get position.
	var pos = new function(){ this.x = 0; this.y = 0; }
	while( targetEle ){
		pos.x += targetEle.offsetLeft; 
		pos.y += targetEle.offsetTop; 
		targetEle = targetEle.offsetParent;
		//for IE hacks
		if ((targetEle) && (is_ie)) {
			pos.x += (parseInt(getElementStyleWelkame(targetEle,"borderLeftWidth","border-left-width")) || 0);
			pos.y += (parseInt(getElementStyleWelkame(targetEle,"borderTopWidth","border-top-width")) || 0);
		}
	}
	//gecko hacks
	if (is_gecko) {
		//get body property and compensate border property
		var bd = document.getElementsByTagName("BODY")[0];//get body 
		pos.x += 2*(parseInt(getElementStyleWelkame(bd,"borderLeftWidth","border-left-width")) || 0);
		pos.y += 2*(parseInt(getElementStyleWelkame(bd,"borderTopWidth","border-top-width")) || 0);
	}
	var result= {top:pos.x,left:pos.y};
	return result;
}//---End Function



//v1.7
// Flash Player Version Detection
// Detect Client Browser type
// Copyright 2005-2007 Adobe Systems Incorporated.  All rights reserved.
var isIE  = (navigator.appVersion.indexOf("MSIE") != -1) ? true : false;
var isWin = (navigator.appVersion.toLowerCase().indexOf("win") != -1) ? true : false;
var isOpera = (navigator.userAgent.indexOf("Opera") != -1) ? true : false;

function ControlVersion()
{
	var version;
	var axo;
	var e;
	// NOTE : new ActiveXObject(strFoo) throws an exception if strFoo isn't in the registry
	try {
		// version will be set for 7.X or greater players
		axo = new ActiveXObject("ShockwaveFlash.ShockwaveFlash.7");
		version = axo.GetVariable("$version");
	} catch (e) {
	}
	if (!version)
	{
		try {
			// version will be set for 6.X players only
			axo = new ActiveXObject("ShockwaveFlash.ShockwaveFlash.6");	
			// installed player is some revision of 6.0
			// GetVariable("$version") crashes for versions 6.0.22 through 6.0.29,
			// so we have to be careful. 
			// default to the first public version
			version = "WIN 6,0,21,0";
			// throws if AllowScripAccess does not exist (introduced in 6.0r47)		
			axo.AllowScriptAccess = "always";
			// safe to call for 6.0r47 or greater
			version = axo.GetVariable("$version");
		} catch (e) {
		}
	}
	if (!version)
	{
		try {
			// version will be set for 4.X or 5.X player
			axo = new ActiveXObject("ShockwaveFlash.ShockwaveFlash.3");
			version = axo.GetVariable("$version");
		} catch (e) {
		}
	}
	if (!version)
	{
		try {
			// version will be set for 3.X player
			axo = new ActiveXObject("ShockwaveFlash.ShockwaveFlash.3");
			version = "WIN 3,0,18,0";
		} catch (e) {
		}
	}
	if (!version)
	{
		try {
			// version will be set for 2.X player
			axo = new ActiveXObject("ShockwaveFlash.ShockwaveFlash");
			version = "WIN 2,0,0,11";
		} catch (e) {
			version = -1;
		}
	}
	return version;
}

// JavaScript helper required to detect Flash Player PlugIn version information
function GetSwfVer(){
	// NS/Opera version >= 3 check for Flash plugin in plugin array
	var flashVer = -1;
	
	if (navigator.plugins != null && navigator.plugins.length > 0) {
		if (navigator.plugins["Shockwave Flash 2.0"] || navigator.plugins["Shockwave Flash"]) {
			var swVer2 = navigator.plugins["Shockwave Flash 2.0"] ? " 2.0" : "";
			var flashDescription = navigator.plugins["Shockwave Flash" + swVer2].description;
			var descArray = flashDescription.split(" ");
			var tempArrayMajor = descArray[2].split(".");			
			var versionMajor = tempArrayMajor[0];
			var versionMinor = tempArrayMajor[1];
			var versionRevision = descArray[3];
			if (versionRevision == "") {
				versionRevision = descArray[4];
			}
			if (versionRevision[0] == "d") {
				versionRevision = versionRevision.substring(1);
			} else if (versionRevision[0] == "r") {
				versionRevision = versionRevision.substring(1);
				if (versionRevision.indexOf("d") > 0) {
					versionRevision = versionRevision.substring(0, versionRevision.indexOf("d"));
				}
			}
			var flashVer = versionMajor + "." + versionMinor + "." + versionRevision;
		}
	}
	// MSN/WebTV 2.6 supports Flash 4
	else if (navigator.userAgent.toLowerCase().indexOf("webtv/2.6") != -1) flashVer = 4;
	// WebTV 2.5 supports Flash 3
	else if (navigator.userAgent.toLowerCase().indexOf("webtv/2.5") != -1) flashVer = 3;
	// older WebTV supports Flash 2
	else if (navigator.userAgent.toLowerCase().indexOf("webtv") != -1) flashVer = 2;
	else if ( isIE && isWin && !isOpera ) {
		flashVer = ControlVersion();
	}	
	return flashVer;
}

// When called with reqMajorVer, reqMinorVer, reqRevision returns true if that version or greater is available
function DetectFlashVer(reqMajorVer, reqMinorVer, reqRevision)
{
	versionStr = GetSwfVer();
	if (versionStr == -1 ) {
		return false;
	} else if (versionStr != 0) {
		if(isIE && isWin && !isOpera) {
			// Given "WIN 2,0,0,11"
			tempArray         = versionStr.split(" "); 	// ["WIN", "2,0,0,11"]
			tempString        = tempArray[1];			// "2,0,0,11"
			versionArray      = tempString.split(",");	// ['2', '0', '0', '11']
		} else {
			versionArray      = versionStr.split(".");
		}
		var versionMajor      = versionArray[0];
		var versionMinor      = versionArray[1];
		var versionRevision   = versionArray[2];

        	// is the major.revision >= requested major.revision AND the minor version >= requested minor
		if (versionMajor > parseFloat(reqMajorVer)) {
			return true;
		} else if (versionMajor == parseFloat(reqMajorVer)) {
			if (versionMinor > parseFloat(reqMinorVer))
				return true;
			else if (versionMinor == parseFloat(reqMinorVer)) {
				if (versionRevision >= parseFloat(reqRevision))
					return true;
			}
		}
		return false;
	}
}
function scrollToTopAnime(){
	if(getPageScrollWelkame()[1]<=5){;
		window.scrollTo(0,0);
		return true;
		breack;
	}
	window.scrollTo(0, Math.ceil(getPageScrollWelkame()[1]-getPageScrollWelkame()[1]/5));
	setTimeout(function(){scrollToTopAnime()},10);
}

function setWelkameBannerParts(){
	var file_url = "http://www.nhk.or.jp/welkame-pre/blogparts/welkame_blopa_main.swf";
	if(DetectFlashVer(8,0,0)){
		var html ="";
		html +='<object classid="clsid:d27cdb6e-ae6d-11cf-96b8-444553540000" codebase="http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=9,0,0,0" width="150" height="80" id="welkameBannerEmbed" align="middle">';
		html +='<param name="allowScriptAccess" value="always" />';
		html +='<param name="allowFullScreen" value="false" />';
		html +='<param name="movie" value="' + file_url + '" />';
		html +='<param name="quality" value="best" />';
		html +='<param name="bgcolor" value="#ffffff" />';
		html +='<param name="wmode" value="transparent" />';
		html +='<param name="FlashVars" value="rss='+rssURLWelkame+'" />';
		html +='<embed name="welkameBannerEmbed" src="' + file_url + '" quality="high" bgcolor="#ffffff" width="150" height="80" name="bnr" align="middle" allowScriptAccess="always" wmode="transparent" FlashVars="rss='+rssURLWelkame+'" allowFullScreen="false" type="application/x-shockwave-flash" pluginspage="http://www.macromedia.com/go/getflashplayer" /></embed>';
		html +='</object>';
		document.getElementById('welkameBanner').innerHTML = html;
		document.getElementById('welkameBanner').className = "welkameBanner";	
		//var objHead = document.getElementsByTagName('head')[0];
		//objHead.insertBefore(objJs,objHead.firstChild);
	}
}

setWelkameBannerParts();
//eos