var targetVersion = 8;

function available_flash() {
	var es = false;
	if(po = navigator.plugins['Shockwave Flash']){
		var fv = po.description.match(/[0-9]/,'');
		if(fv >= 8)es |= true;
	}
	if(navigator.userAgent.indexOf('MSIE') > -1)if(able_ie())es |= true;
	if(!es)false;
}

function able_ie() {
	try{
		new ActiveXObject("ShockwaveFlash.ShockwaveFlash.8");
	} catch(e){
		return false;
	}
	return true;
}

function write_flash() {
	document.write('<object classid="clsid:d27cdb6e-ae6d-11cf-96b8-444553540000" codebase="http://fpdownload.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=8,0,0,0" width="960" height="203" id="img" align="middle">');
	document.write('<param name="allowScriptAccess" value="sameDomain" />','<param name="movie" value="/top.swf" />','<param name="quality" value="high" />','<param name="scale" value="noscale" />','<param name="bgcolor" value="#FFFFFF" />');
	document.write('<embed src="/top.swf" quality="high" scale="noscale" bgcolor="#FFFFFF" width="960" height="203" name="img" align="middle" allowScriptAccess="sameDomain" type="application/x-shockwave-flash" pluginspage="http://www.macromedia.com/go/getflashplayer" />');
	document.write('</object>');
}

function write_static() {
	document.write('<div id="topBox">');
	document.write('<h1><img src="images/sample.gif" alt="" width="0" height="0" /></h1>');
	document.write('<p><img src="images/sample2.gif" alt="" width="0" height="0" /></p>');
	document.write('</div>');
}
/*
if(available_flash()) {
	write_flash();
} else {
	write_static();
	alert('abc');
}
*/
write_flash();