var mainNav=function(){var a={obj_nav:$(arguments[0])||$("nav"),settings:{show_delay:0,hide_delay:0,_ie6:/MSIE 6.+Win/.test(navigator.userAgent),_ie7:/MSIE 7.+Win/.test(navigator.userAgent)},init:function(b,c){b.lists=b.childElements();b.lists.each(function(d,e){a.handlNavElement(d);if((a.settings._ie6||a.settings._ie7)&&c){a.ieFixZIndex(d,e,b.lists.size())}});if(a.settings._ie6&&!c){document.execCommand("BackgroundImageCache",false,true)}},handlNavElement:function(b){if(b!==undefined){b.onmouseover=function(){a.fireNavEvent(this,true)};b.onmouseout=function(){a.fireNavEvent(this,false)};if(b.down("ul")){a.init(b.down("ul"),true)}}},ieFixZIndex:function(d,c,b){if(d.tagName.toString().toLowerCase().indexOf("iframe")==-1){d.style.zIndex=b-c}else{d.onmouseover="null";d.onmouseout="null"}},fireNavEvent:function(c,b){if(b){c.addClassName("over");c.down("a").addClassName("over");if(c.childElements()[1]){a.show(c.childElements()[1])}}else{c.removeClassName("over");c.down("a").removeClassName("over");if(c.childElements()[1]){a.hide(c.childElements()[1])}}},show:function(b){if(b.hide_time_id){clearTimeout(b.hide_time_id)}b.show_time_id=setTimeout(function(){if(!b.hasClassName("shown-sub")){b.addClassName("shown-sub")}},a.settings.show_delay)},hide:function(b){if(b.show_time_id){clearTimeout(b.show_time_id)}b.hide_time_id=setTimeout(function(){if(b.hasClassName("shown-sub")){b.removeClassName("shown-sub")}},a.settings.hide_delay)}};if(arguments[1]){a.settings=Object.extend(a.settings,arguments[1])}if(a.obj_nav){a.init(a.obj_nav,false)}};document.observe("dom:loaded",function(){});