var arrowimages = { down: ['downarrowclass', '/Images/arrow-down.gif', 25], right: ['rightarrowclass', '/Images/arrow-right.gif'] }
// kich thuoc va ten anh

var jquerycssmenu = {

    fadesettings: { overduration: 350, outduration: 100 }, //duration of fade in/ out animation, in milliseconds

    buildmenu: function (menuid, arrowsvar) {
        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, subulw: $subul.outerWidth(), subulh: $subul.outerHeight() }
                this.istopheader = $curobj.parents("ul").length == 1 ? true : false
                $subul.css({ top: this.istopheader ? this._dimensions.h + "px" : 0 })
                $curobj.children("a:eq(0)").css(this.istopheader ? { paddingRight: arrowsvar.down[2]} : {}).append(
				'<img src="' + (this.istopheader ? arrowsvar.down[1] : arrowsvar.right[1])
				+ '" class="' + (this.istopheader ? arrowsvar.down[0] : arrowsvar.right[0])
				+ '" style="border: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
    }
}

//build menu with ID="myjquerymenu" on page:
jquerycssmenu.buildmenu("myjquerymenu", arrowimages)