// JavaScript Document
//支持多浏览器的菜单脚本
function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

//只改变本身的相关属性
function MM_showHideLayers() { //v6.0
  var i,p,v,obj,args=MM_showHideLayers.arguments;
  for (i=0; i<(args.length-2); i+=3) if ((obj=MM_findObj(args[i]))!=null) { v=args[i+2];
    if (obj.style) { obj=obj.style; v=(v=='show')?'visible':(v=='hide')?'hidden':v; }	
    obj.visibility=v; }
}

//改变本身的相关属性及其它对象的属性
function MM_showHideLayers_2() { //v6.0
  var i,p,v,obj,f_objstr,t_v;
  var args=MM_showHideLayers_2.arguments;
  for (i=0; i<(args.length-2); i++)
  {
	if ((obj=MM_findObj(args[i]))!=null) {
		v=args[i+2];
		f_objstr=args[i+1];
		t_v=args[i+3];

		if(t_v>1)
		{
			for(var j=1; j<=t_v; j++)
			{
				var other_obj=MM_findObj(f_objstr + j);
				if(other_obj)
				{
					if (other_obj.style) { other_obj.style.visibility='hidden'; }
				}
			}
		}
		if (obj.style) { obj=obj.style; v=(v=='show')?'visible':(v=='hide')?'hidden':v; }	
		obj.visibility=v;
	}
  }
}

function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}
function Trim(str)
 { 
  var Astr=str.split('');
  var str1="";
  for(i=0;i<Astr.length;i++)
   {
    str1+=Astr[i].replace(" ","");
   }
  return str1;
 }
function Check_Feedback(){  
   var fb_value=Trim(document.getElementById("name").value);
   if(fb_value=="")
    {
      alert("请输入联系人姓名!");
      document.getElementById("name").focus();
      return false;
    }
   var fb_value=Trim(document.getElementById("phone").value);
   if(fb_value.length<5)
    {
      alert("请输入联系电话!");
      document.getElementById("phone").focus();
      return false;
    }

   var fb_value=Trim(document.getElementById("email").value);
   if(fb_value=="")
    {
     alert("请输入您的邮箱!");
     document.getElementById("email").focus();
     return false;
     }
     if (fb_value.charAt(0)=="." || fb_value.charAt(0)=="@" || fb_value.indexOf('@', 0) == -1 || fb_value.indexOf('.', 0) == -1 || fb_value.lastIndexOf("@")==fb_value.length-1 || fb_value.lastIndexOf(".")==fb_value.length-1)
        {
           alert("邮箱格式错误，请重新输入!");
          document.getElementById("email").focus();
          return false;
        }

   var fb_value=Trim(document.getElementById("content").value);
   if(fb_value=="")
    {
      alert("请输入留言内容!");
      document.getElementById("content").focus();
      return false;
    }

   var fb_value=Trim(document.getElementById("fb_yzm").value);
   if(fb_value=="")
    {
      alert("请输入验证码!");
      document.getElementById("fb_yzm").focus();
      return false;
    }


  }
  
jQuery.fn.loadthumb = function(options) {
	options = $.extend({
		 src : ""
	},options);
	var _self = this;
	_self.hide();
	var img = new Image();
	$(img).load(function(){
		_self.attr("src", options.src);
		_self.fadeIn("slow");
	}).attr("src", options.src);  //.atte("src",options.src)要放在load后面，
	return _self;
}

$(document).ready(function(){
	 var len  = $(".num > li").length;
	 var index = 0;
	 var adTimer;
	 $(".num li").mouseover(function(){
		index  =   $(".num li").index(this);
		showImg(index);
	 }).eq(0).mouseover();	
	 //滑入 停止动画，滑出开始动画.
	 $('.ad').hover(function(){
			 clearInterval(adTimer);
		 },function(){
			 adTimer = setInterval(function(){
			    index++;
				if(index==len){index=0;}
				showImg(index);				
			  } , 5000);
	 }).trigger("mouseleave");
});