var topid="";
$(function(){
	//导航响应
	$("#menu ul li").mouseover(function(){
		if ($(this).find("img").attr("id")!=topid){
			$(this).find("img").attr("src",$(this).find("img").attr("src").replace("1","2"));
		}
		$(this).find("p").stop().show();
	});
	$("#menu ul li").mouseout(function(){
		if ($(this).find("img").attr("id")!=topid){
			$(this).find("img").attr("src",$(this).find("img").attr("src").replace("2","1"));
		}
		$(this).find("p").stop().hide();
	});
	$("#menu ul li").each(function(){
    	if ($(this).find("img").attr("id")==topid) $(this).find("img").attr("src",$(this).find("img").attr("src").replace("1","2"));
	});
	
	//首页
	if (topid=="sort_home"){
		//业务领域
		$("#m_left .box_ywly div").mouseover(function(){
			$home_ywly($(this).index());
		});
		$home_ywly(0);
		
		//图片新闻
		home_photonews_len=$("#m_center .home_photonews div.list_box").size();
		for(var i=1; i<=home_photonews_len; i++){
			$("#m_center .home_photonews div.list_tab").append("<span>"+i+"</span>");
		}
		$("#m_center .home_photonews div.list_tab span").mouseover(function(){
			$home_photonews($(this).index());
		});
		$home_photonews(0);
		
		//产品
		$("#m_right .home_project .list_box ul").append("<li>"+$("#m_right .home_project .list_box ul li:eq(0)").html()+"</li>");
		$("#m_right .home_project .list_tab").data("q",$("#m_right .home_project .list_box ul li").size());
		$("#m_right .home_project .list_tab").data("i",0);
		$("#m_right .home_project ul").css("width",$("#m_right .home_project .list_tab").data("q")*$("#m_right .home_project .list_box").width());
		$("#m_right .home_project .list_tab img").eq(0).click(function(){
			var i=$(this).parent().data("i");
			i--;
			if(i<1){
				$home_project_to($(this).parent().data("q"));
				i=$(this).parent().data("q")-1;
			}; 
			$(this).parent().data("i",i);
			$home_project(i);
		});
		$("#m_right .home_project .list_tab img").eq(1).click(function(){
			var i=$(this).parent().data("i");
			i++;
			if(i>$(this).parent().data("q")){
				$home_project_to(1);
				i=2;
			};
			$(this).parent().data("i",i);
			$home_project(i);
		});
		$home_project_timer();
		
		//下属公司
		$("#m_right .home_com div").click(function(){
			$(this).next("ul").stop().slidetoggle("fast");
			return false;
		});
		$("body").click(function(){
			$("#m_right .home_com ul").stop().slideup("fast");
		});
	}
	
});

//首页业务
var home_old_id=-1;
function $home_ywly(id){
	if (home_old_id!=-1){
		$("#m_left .box_ywly div").eq(home_old_id).find("p:eq(0)").attr("class","t");
		$("#m_left .box_ywly div").eq(home_old_id).find("p:eq(1)").hide();
	}
	$("#m_left .box_ywly div").eq(id).find("p:eq(0)").attr("class","t2");
	$("#m_left .box_ywly div").eq(id).find("p:eq(1)").show();
	home_old_id=id;
}

//首页图片新闻
var home_photonews_len=0;
var home_old_id2=-1;
var home_photonews_timer="";
function $home_photonews_timer(){
	var i=home_old_id2+1;
	if(i>=home_photonews_len) i=0;
	$home_photonews(i);
}
function $home_photonews(id){
	if (home_old_id2!=-1){
		$("#m_center .home_photonews div.list_tab span").eq(home_old_id2).removeclass("sel");
		$("#m_center .home_photonews div.list_box").eq(home_old_id2).stop().fadeout("fast",function(){$home_photonews2(id)});
	}else{
		$home_photonews2(id)
	}
}
function $home_photonews2(id){
	$("#m_center .home_photonews div.list_tab span").eq(id).addclass("sel");
	$("#m_center .home_photonews div.list_box").eq(id).stop().fadein("fast");
	home_old_id2=id;
	cleartimeout(home_photonews_timer);
	home_photonews_timer=settimeout("$home_photonews_timer()",5000);
}

//首页产品
var home_project_timer="";
function $home_project_timer(){
	var i=$("#m_right .home_project .list_tab").data("i");
	i++;
	if(i>$("#m_right .home_project .list_tab").data("q")){
		$home_project_to(1);
		i=2;
	}
	$("#m_right .home_project .list_tab").data("i",i);
	$home_project(i);
}
function $home_project_to(id){
	var target=$("#m_right .home_project .list_box ul li").eq(id-1);
	$("#m_right .home_project .list_box").stop().scrollto(target, 0)
	//$(this).parent().find(".list_tab").data("i",id);
}
function $home_project(id){
	$(this).parent().data("i",id);
	var target=$("#m_right .home_project .list_box ul li").eq(id-1);
	$("#m_right .home_project .list_box").stop().scrollto(target, 500);
	cleartimeout(home_project_timer);
	home_project_timer=settimeout("$home_project_timer()",3000);
	return false;
}

//友情链接
function openlink(select_obj){
	var url = select_obj.options[select_obj.selectedindex].value;
	if(url != "") self.open(url,"_blank");
	select_obj.selectedindex=0;
}

// 一般标签类
function tab(cname){
	
	var old_id = new array();
	old_id[cname] = 0;
	
	this.$ = function(id){
		return (typeof(id)=='object') ? id : document.getelementbyid(id);
	}
	
	this.show = function(tabname,boxname,id){
		if (old_id[cname]!=id){
			if (old_id[cname]!=0){
				this.$(tabname+old_id[cname]).classname=tabname+"1";
				this.$(boxname+old_id[cname]).classname=boxname+"1";
			}
			this.$(tabname+id).classname=tabname+"2";
			this.$(boxname+id).classname=boxname+"2";
			old_id[cname] = id;
		}
	}
}