$(document).ready( function() {

	var _activeCat = null;

	$("#nav-primary-ul li").mouseover( function( evt ) {
		var newCat = this.id.substr( 12 );
		if ( _activeCat != null ) {
			document.getElementById("nav-secondary-"+_activeCat).style.display = "none";
		}
		document.getElementById("nav-secondary-"+newCat).style.display = "block";
		_activeCat = newCat;
	} );
	
	$("#nav-primary-home").trigger( "mouseover" );

} );