function MM_jumpMenu(targ,selObj,restore){ //v3.0 自动跳转
  eval(targ+".location='"+selObj.options[selObj.selectedIndex].value+"'");
  if (restore) selObj.selectedIndex=0;
}

function MM_findObj(n, d) { //v4.01 显示下级菜单
  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;
}

function MM_showHideLayers() { //v6.0 显示下级层
  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; }
}
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_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_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 checkspace(checkstr) {   //问卷反馈开始
  var str = '';
  for(i = 0; i < checkstr.length; i++) {
    str = str + ' ';
  }
  return (str == checkstr);
}

function checkfk()
{
   if(checkspace(document.fkinfo.fksubject.value)) {
	document.fkinfo.fksubject.focus();
    alert("您没有填写主题！");
	return false;
  }
   if(checkspace(document.fkinfo.fkusername.value)) {
	document.fkinfo.fkusername.focus();
    alert("请填写您的姓名！");
	return false;
  }
   if(checkspace(document.fkinfo.fklaizi.value)) {
	document.fkinfo.fklaizi.focus();
    alert("请填写您来自哪里！");
	return false;
  }
     if(checkspace(document.fkinfo.fkcontent.value)) {
	document.fkinfo.fkcontent.focus();
    alert("请填写反馈信息内容！");
	return false;
  }
  
  if(document.fkinfo.fkemail.value.length!=0)
  {
    if (document.fkinfo.fkemail.value.charAt(0)=="." ||        
         document.fkinfo.fkemail.value.charAt(0)=="@"||       
         document.fkinfo.fkemail.value.indexOf('@', 0) == -1 || 
         document.fkinfo.fkemail.value.indexOf('.', 0) == -1 || 
         document.fkinfo.fkemail.value.lastIndexOf("@")==document.fkinfo.fkemail.value.length-1 || 
         document.fkinfo.fkemail.value.lastIndexOf(".")==document.fkinfo.fkemail.value.length-1)
     {
      alert("Email地址格式不正确！");
      document.fkinfo.fkemail.focus();
      return false;
      }
   }
 else
  {
   alert("Email不能为空！");
   document.fkinfo.fkemail.focus();
   return false;
   }

}                           //问卷反馈结束