//========== ここから設定部分 ========================================

////// 埋め込むFlashの相対パス
var args = getArgs();
if(args.f == 1){
	var flashFileName = "/top.swf?flag=1";
}else{
	var flashFileName = "/top.swf";
}

////// 埋め込むFlashの横幅
var flashWidth = "740";

////// 埋め込むFlashの縦幅
var flashHeight = "355";

////// bgcolor
var bgcolor = "#F4F8FA";



////// Flash未インストール時に表示するメッセージ
var NoFlashMessage = '<img src="images/mainimg.jpg" width="740" height="355" alt="メインビジュアル" />';


//========== ここまで設定部分 ========================================
var requiredVersion = 6;

var flash2Installed = false;
var flash3Installed = false;
var flash4Installed = false;
var flash5Installed = false;
var flash6Installed = false;
var maxVersion = 6;
var actualVersion = 0;
var hasRightVersion = false;
var noflashflag;

var isIE = (navigator.appVersion.indexOf("MSIE") != -1) ? true : false;    // true if we're on ie
var isWin = (navigator.appVersion.indexOf("Windows") != -1) ? true : false; // true if we're on windows


var isNN6Min = getNNVersionNumber() >= 6;

if(isNN6Min && args.f == 1){
	document.write(NoFlashMessage);
}else{
	detectFlash();
}
//====================================================================
function detectFlash() {


	if(isIE && isWin){
		document.write('<SCR' + 'IPT LANGUAGE=VBScript\> \n');
		document.write('on error resume next \n');
		document.write('flash2Installed = (IsObject(CreateObject("ShockwaveFlash.ShockwaveFlash.2"))) \n');
		document.write('flash3Installed = (IsObject(CreateObject("ShockwaveFlash.ShockwaveFlash.3"))) \n');
		document.write('flash4Installed = (IsObject(CreateObject("ShockwaveFlash.ShockwaveFlash.4"))) \n');
		document.write('flash5Installed = (IsObject(CreateObject("ShockwaveFlash.ShockwaveFlash.5"))) \n');  
		document.write('flash6Installed = (IsObject(CreateObject("ShockwaveFlash.ShockwaveFlash.6"))) \n');  
		document.write('</SCR' + 'IPT\> \n'); // break up end tag so it doesn't end our script
	}

	if (navigator.plugins) {
		if (navigator.plugins["Shockwave Flash 2.0"] || navigator.plugins["Shockwave Flash"]) {
			var isVersion2 = navigator.plugins["Shockwave Flash 2.0"] ? " 2.0" : "";
			var flashDescription = navigator.plugins["Shockwave Flash" + isVersion2].description;

			var flashVersion = parseInt(flashDescription.charAt(flashDescription.indexOf(".") - 1));

			flash2Installed = flashVersion == 2;
			flash3Installed = flashVersion == 3;
			flash4Installed = flashVersion == 4;
			flash5Installed = flashVersion == 5;
			flash6Installed = flashVersion >= 6;
		}
	}

	for (var i = 2; i <= maxVersion; i++) {  
		if (eval("flash" + i + "Installed") == true) actualVersion = i;
	}

	if(navigator.userAgent.indexOf("WebTV") != -1) actualVersion = 3;  

	if (actualVersion >= requiredVersion) {
		hasRightVersion = true;
		document.write("<object classid=\"\" codebase=\"http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=6,0,0,0\" width=\"" + flashWidth + "\" height=\"" + flashHeight + "\">");
		document.write("<param name=\"movie\" value=\"" + flashFileName + "\">");
		document.write("<param name=\"quality\" value=\"high\">");
		document.write("<param name=\"bgcolor\" value=\"" + bgcolor + "\">");
		document.write("<embed src=\"" + flashFileName + "\" quality=\"high\" bgcolor=\"" + bgcolor + "\" width=\"" + flashWidth + "\" height=\"" + flashHeight + "\" type=\"application/x-shockwave-flash\" pluginspage=\"http://www.macromedia.com/go/getflashplayer\"></embed>");
 		document.write("</object>");
	} else {  
		document.write(NoFlashMessage);
	}
}



function getArgs(){
	var args = new Object();
	var query = location.search.substring(1);
	var pairs = query.split("&");
	for(var i = 0; i < pairs.length; i++){
		var pos = pairs[i].indexOf('=');
		if(pos == -1) continue;
		var argname = pairs[i].substring(0, pos);
		var value = pairs[i].substring(pos + 1);
		args[argname] = unescape(value);
	}
	return args;
}



function getNNVersionNumber() {
	if (navigator.appName == "Netscape") {
		var appVer = parseFloat(navigator.appVersion);
		if (appVer < 5) {
			return appVer;
		} else {
			if (typeof navigator.vendorSub != "undefined") {
				return parseFloat(navigator.vendorSub);
			}
		}
	}
	return 0;
}