OP.navigation=(function(){var B=null,A=null;return{init:function(){if(!document.getElementById(A)){return }var C=document.getElementById(A).getElementsByTagName("li"),D;if(!document.getElementById(A)){return false}for(D=0;D<C.length;D++){OP.utility.observe(C[D],"mouseover",OP.navigation.onHover);OP.utility.observe(C[D],"mouseout",OP.navigation.onOut)}},onHover:function(){B=this.className==undefined?event.srcElement:this;if(B.parentNode.parentNode.parentNode.id!=A){return }if(B.className!=""){classes=B.className.split("s");if(!("display" in classes)){B.className+=" display"}}else{B.className="display"}},onOut:function(){if(B!=null){B.className=B.className.replace(/(\s)*display/,"")}},setContainer:function(){A=arguments[0]}}})();OP.navigation.setContainer("op_navigation");OP.utility.addLoadProcess(OP.navigation.init);