// WMP64 was create above via OBJECT tag else this returns False.
try {
	fHasWMP64 = (document.WMP64.FileName == "");
} catch (ex) {
	fHasWMP64 = false;
}

// WMP7 was create above via OBJECT tag else this returns False.  
try {
	fHasWMP7 = (document.WMP7.URL == "");
} catch (ex) {
	fHasWMP7 = false;
}