function fireDefaultButton( event, target ) {
	var element = event.target || event.srcElement;
	if( event.keyCode == 13 && !( element && ( element.tagName.toLowerCase() == "textarea" ) ) ) {
		var defaultButton = document.getElementById( target );
		if( defaultButton && typeof( defaultButton.click ) != "undefined" ) {
			__defaultFired = true;
			defaultButton.click();
			event.cancelBubble = true;
			if (event.stopPropagation)
				event.stopPropagation();
			return false;
		}
	}
	return true;
}