var Nav={
	navs : new Array(),
    init : function(){
    	var nav_str;
    	this.navs[1]="<a href=\"Article.asp?fid=1&pid=6\">公司简介</a>|<a href=\"Article.asp?fid=1&pid=7\">企业文化</a>";
    	this.navs[2]="<a href=\"Article.asp?fid=2&pid=8\">GPS</a>|<a href=\"Article.asp?fid=2&pid=9\">全站仪</a>|<a href=\"Article.asp?fid=2&pid=13\">经纬仪</a>|<a href=\"Article.asp?fid=2&pid=14\">垂准仪</a>|<a href=\"Article.asp?fid=2&pid=15\">水准仪</a>|<a href=\"Article.asp?fid=2&pid=24\">标线仪</a>|<a href=\"Article.asp?fid=2&pid=30\">测距仪</a>|<a href=\"Article.asp?fid=2&pid=31\">测距望远镜</a>|<a href=\"Article.asp?fid=2&pid=38\">对讲机</a>|<a href=\"Article.asp?fid=2&pid=39\">卷尺</a>";
    	this.navs[4]='<a href="download.asp">说明书及用户下载</a>|<a href="article.asp?fid=4">常见问题</a>|<a href="feedback.asp">意见反馈</a>';
        nav_str="<span id='nav_1'>"+this.navs[1]+"</span><span id='nav_2'>"+this.navs[2]+"</span><span id='nav_4'>"+this.navs[4]+"</span>";
        $("#nav_child").html(nav_str);
        this.addEvt();
    },
    addEvt : function(){
    	var lt;
    	for(i=0;i<$("#Nav a").length;i++){
        	if(this.navs[i]){
            	eval('$("#Nav a").eq(i).hover(function(){$("#nav_child").show();$("#nav_child span").hide();$("#nav_"+'+i+').show();})');
            }
        }
        $("#nav_child").hide().css("visibility","visible");
        $("#nav_child").hover(function(){$("#nav_child").show()},function(){$("#nav_child").hide()})
   	}
}

Nav.init();