var jquerycssmenu = {
    fadesettings: { overduration: 350, outduration: 200 }, //duration of fade in/ out animation, in milliseconds
    buildmenu: function(menuid) {
        jQuery(document).ready(function($) {
            var $mainmenu = $(menuid + ">ul");
            var $headers = $mainmenu.find("ul").parent();
            $headers.each(function(i) {
                var $curobj = $(this);
                var $subul = $(this).find('ul:eq(0)');
                this._dimensions = { w: this.offsetWidth, h: this.offsetHeight }
                this.istopheader = $curobj.parents("ul").length == 1 ? true : false;
                $subul.css({ top: this.istopheader ? this._dimensions.h + "px" : 0 });
                $curobj.hover(
				function(e) {
				    var $targetul = $(this).children("ul:eq(0)");
				    this._offsets = { left: $(this).offset().left, top: $(this).offset().top }
				    var menuleft = this.istopheader ? 0 : this._dimensions.w;
				    menuleft = (this._offsets.left + menuleft + this._dimensions.subulw > $(window).width()) ? (this.istopheader ? -this._dimensions.subulw + this._dimensions.w : -this._dimensions.w) : menuleft;
				    $targetul.css({ left: menuleft + "px" }).fadeIn(jquerycssmenu.fadesettings.overduration);
				},
				function(e) {
				    $(this).children("ul:eq(0)").fadeOut(jquerycssmenu.fadesettings.outduration);
				}
			) //end hover
            }) //end $headers.each()
            $mainmenu.find("ul").css({ display: 'none', visibility: 'visible' });
        }) //end document.ready
    }
}
jquerycssmenu.buildmenu("div.nav");