// デフォルト変換ルール
var convsAry = {};

// フラッシュチェック
var requiredMajorVersion = 5;
var requiredMinorVersion = 0;
var requiredRevision = 0;
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 JSGetSwfVer(i){
    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;
	    descArray = flashDescription.split(" ");
	    tempArrayMajor = descArray[2].split(".");
	    versionMajor = tempArrayMajor[0];
	    versionMinor = tempArrayMajor[1];
	    if ( descArray[3] != "" ) {
		tempArrayMinor = descArray[3].split("r");
	    } else {
		tempArrayMinor = descArray[4].split("r");
	    }
      	    versionRevision = tempArrayMinor[1] > 0 ? tempArrayMinor[1] : 0;
            flashVer = versionMajor + "." + versionMinor + "." + versionRevision;
      	} else {
	    flashVer = -1;
	}
    }
    else if (navigator.userAgent.toLowerCase().indexOf("webtv/2.6") != -1) flashVer = 4;
    else if (navigator.userAgent.toLowerCase().indexOf("webtv/2.5") != -1) flashVer = 3;
    else if (navigator.userAgent.toLowerCase().indexOf("webtv") != -1) flashVer = 2;
    else {
	flashVer = -1;
    }
    return flashVer;
}
function writeVBScript() {
    var iecode = "";
    iecode = '<SCR' + 'IPT LANGUAGE="VBScript"\>'+"\n";
    iecode += 'Function VBGetSwfVer(i)'+"\n";
    iecode += '  on error resume next '+"\n";
    iecode += '  Dim swControl, swVersion'+"\n";
    iecode += '  swVersion = 0'+"\n";
    iecode += '  set swControl = CreateObject("ShockwaveFlash.ShockwaveFlash." + CStr(i))'+"\n";
    iecode += '  if (IsObject(swControl)) then'+"\n";
    iecode += '    swVersion = swControl.GetVariable("$version")'+"\n";
    iecode += '  end if'+"\n";
    iecode += '  VBGetSwfVer = swVersion'+"\n";
    iecode += 'End Function' + "\n";
    iecode += '<'+'/SCR' + 'IPT\>'+"\n";
    document.write(iecode);
}
function DetectFlashVer(reqMajorVer, reqMinorVer, reqRevision) 
{
    reqVer = parseFloat(reqMajorVer + "." + reqRevision);
    if (isIE && isWin && !isOpera) {
	writeVBScript();
    }
    for (i=25;i>0;i--) {	
	if (isIE && isWin && !isOpera) {
	    versionStr = VBGetSwfVer(i);
	} else {
	    versionStr = JSGetSwfVer(i);		
	}
	if (versionStr == -1 ) { 
	    return false;
	} else if (versionStr != 0) {
	    if(isIE && isWin && !isOpera) {
		tempArray         = versionStr.split(" ");
		tempString        = tempArray[1];
		versionArray      = tempString .split(",");				
	    } else {
		versionArray      = versionStr.split(".");
	    }
	    versionMajor      = versionArray[0];
	    versionMinor      = versionArray[1];
	    versionRevision   = versionArray[2];			
	    versionString     = versionMajor + "." + versionRevision;
	    versionNum        = parseFloat(versionString);
  	    if ( (versionMajor > reqMajorVer) && (versionNum >= reqVer) ) {
		return true;
	    } else {
		return ((versionNum >= reqVer && versionMinor >= reqMinorVer) ? true : false );	
	    }
	}	
    }
    return (reqVer ? false : 0.0);
}
var hasRightVersion = DetectFlashVer(requiredMajorVersion, requiredMinorVersion, requiredRevision);

// 広告切り替え機能
function switchAd(prefix) {

    this.tags = {
	"swf" : '<object data="%%dreammail_site%%%%ad_image%%" type="application/x-shockwave-flash" width="%%ad_width%%" height="%%ad_height%%" wmode="transparent"><param name="FlashVars" value="clickTAG=%%dreammail_site%%%%ad_link%%&targetTAG=%%ad_target%%"><param name="allowScriptAccess" value="sameDomain" /><param name="movie" value="%%dreammail_site%%%%ad_image%%" /><param name="quality" value="high" /><a href="%%ad_link%%" target=%%ad_target%%><img src="%%ad_text3%%" width="%%ad_width%%" height="%%ad_height%%" border="0" title="%%ad_text1%%" alt="%%ad_text1%%" /></a></object><param name="wmode" value="transparent">',
	"gif" : '<a href="%%dreammail_site%%%%ad_link%%" target=%%ad_target%%><img src="%%dreammail_site%%%%ad_image%%" width="%%ad_width%%" height="%%ad_height%%" border="0" title="%%ad_text1%%" alt="%%ad_text1%%" /></a>',
	"jpg" : '<a href="%%dreammail_site%%%%ad_link%%" target=%%ad_target%%><img src="%%dreammail_site%%%%ad_image%%" width="%%ad_width%%" height="%%ad_height%%" border="0" title="%%ad_text1%%" alt="%%ad_text1%%" /></a>'
    };

    this.display = function (args) {
	//args['hostname'] = location.hostname;
	//args['protocol'] = location.protocol;
	args['dreammail_site'] = "https://www.dreammail.jp";
	// 変換ルールと対象の作成
	var convs = new Array();
	for (arg in args) {
	    convs.push(arg);
	    convsAry[arg] = args[arg];
	}
	// 指定のID初期化
	var place = document.getElementById(prefix + convsAry['ad_id']);
	if (place == null) {
	    place = document.getElementById(prefix);
	}
	try {
	    place.innerHTML = "";
	} catch (e) {}

	if (!hasRightVersion) {
	    // フラッシュ未対応であれば、ad_imageをad_text3で上書き
	    convsAry['ad_image'] = convsAry['ad_text3'];
	}

	// 古い AppleWebKit な Safari 対策
	callback = function (m) {
	    return convsAry[m.replace(new RegExp('%%','g'),'')];
	}
	callback.toString = function() {
	    return callback.apply(callback, arguments);
	}

	// ad_image によって分岐
	if(extend = convsAry['ad_image'].match(/\.(swf|jpg|gif)$/i)) {
	    var reg = new RegExp('%%(' + convs.join('|') + ')%%', 'g');
	    var result = this.tags[extend[1]].replace(reg, callback);
	    try {
		place.innerHTML = result;
	    } catch (e) {}
	}
    };
}