When trying to call remove on an element in an XML doc, IE 6 fails with "Object doesn't support this property or method". The reason it is failing is because of the "Prevent memory leaks" section. This part only applies to HTML DOM documents so I wrapped it in a conditional.

remove: function( selector ) {

if ( !selector || jQuery.filter( selector, [ this ] ).r.length ) {

if (this.documentElement == document)

// Prevent memory leaks

jQuery( "*", this ).add(this).each(function(){

jQuery.event.remove(this);

jQuery.removeData(this);

});

if (this.parentNode)

this.parentNode.removeChild( this );

}

},