/*
 * Droppy 0.1.2
 * (c) 2008 Jason Frame (jason@onehackoranother.com)
 */
$.fn.droppy = function( options ) {

	options = $.extend( {speed: 250}, options || {} );

	this.each( function() {
		var root = this, zIndex = 1000;

		function getSubnav( ele ) {
			if ( ele.nodeName.toLowerCase() == 'li' ) {
				var subnav = $( '> ul', ele );
				return subnav.length ? subnav[0] : null;
			} else {
				return ele;
			}
		}

		function getActuator( ele ) {
			if ( ele.nodeName.toLowerCase() == 'ul' ) {
				return $( ele ).parents( 'li' )[0];
			} else {
				return ele;
			}
		}

		function hide() {
			var subnav = getSubnav( this );
			if ( !subnav ) return;
			$.data( subnav, 'cancelHide', false );
			setTimeout( function() {
				if ( !$.data( subnav, 'cancelHide' ) ) {
					$( subnav ).slideUp( options.speed );
				}
			}, 0 );
		}

		function show() {
			var subnav = getSubnav( this );
			if ( !subnav ) return;
			$.data( subnav, 'cancelHide', true );
			$( subnav ).css( {zIndex: zIndex++} ).stop( true, true ).slideDown( options.speed );
			if ( this.nodeName.toLowerCase() == 'ul' ) {
				var li = getActuator( this );
				$( li ).addClass( 'hover' );
				$( '> a', li ).addClass( 'hover' );
			}
		}

		$( 'ul, li', this ).hover( show, hide );
		$( 'li', this ).hover(
			function() {
				$( this ).addClass( 'hover' );
				$( '> a', this ).addClass( 'hover' );
			},
			function() {
				$( this ).removeClass( 'hover' );
				$( '> a', this ).removeClass( 'hover' );
			}
		);

		$( 'li', this ).each( function() {
			var subnav = getSubnav( this );
			if ( subnav ) {
				$( '> a', this ).addClass( 'hassubnav' );
			}
		} )
	} );

};