var sVersion;

sVersion = (navigator.appVersion).toLowerCase();
if( 5.1 <= DetectWindowsVersion( sVersion ) && 7.0 <= DetectIEVersion( sVersion ) )
    document.write( "<div display='none'><img src='https://extended-validation-ssl.verisign.com/dot_clear.gif'/></div>" );

function DetectIEVersion( sVersion )
{
	var version=0;
	if( sVersion.indexOf("msie")!=-1 )
	{
		var appVersion=sVersion.split("msie");
		version=parseFloat(appVersion[1]);
	}
	return version;
}

function DetectWindowsVersion( sVersion )
{
	var version=0;
	if( sVersion.indexOf("windows nt")!=-1 )
	{
		var appVersion=sVersion.split("windows nt");
		version=parseFloat(appVersion[1]);
	}
	return version;
}