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;
}

function MM_validateForm() { //v4.0
  var i,p,q,nm,test,num,min,max,errors='',args=MM_validateForm.arguments;
  for (i=0; i<(args.length-2); i+=3) { test=args[i+2]; val=MM_findObj(args[i]);
    if (val) { nm=val.name; if ((val=val.value)!="") {
      if (test.indexOf('isEmail')!=-1) { p=val.indexOf('@');
        if (p<1 || p==(val.length-1)) errors+='- '+nm+' must contain an e-mail address.\n';
      } else if (test!='R') { num = parseFloat(val);
        if (isNaN(val)) errors+='- '+nm+' must contain a number.\n';
        if (test.indexOf('inRange') != -1) { p=test.indexOf(':');
          min=test.substring(8,p); max=test.substring(p+1);
          if (num<min || max<num) errors+='- '+nm+' must contain a number between '+min+' and '+max+'.\n';
    } } } else if (test.charAt(0) == 'R') errors += '- '+nm+' is required.\n'; }
  } if (errors) alert('The following error(s) occurred:\n'+errors);
  document.MM_returnValue = (errors == '');
}

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];}}
}




var flag=false;
function DrawImage(ImgD,w,h){
   var image=new Image();
   image.src=ImgD.src;
   if(image.width>0 && image.height>0){
    flag=true;
    if(image.width/image.height>= w/h){
     if(image.width>w){  
     ImgD.width=w;
     ImgD.height=(image.height*w)/image.width;
     }else{
     ImgD.width=image.width;  
     ImgD.height=image.height;
     }
     /*ImgD.alt=image.width+"×"+image.height;*/
     }
    else{
     if(image.height>h){  
     ImgD.height=h;
     ImgD.width=(image.width*h)/image.height;     
     }else{
     ImgD.width=image.width;  
     ImgD.height=image.height;
     }
     /*ImgD.alt=image.width+"×"+image.height;*/
     }
    }
   /*else{
    ImgD.src="";
    ImgD.alt=""
    }*/
   } 

var imgObj;
function checkImg(theURL,winName){
  // 对象是否已创建
  if (typeof(imgObj) == "object"){
    // 是否已取得了图像的高度和宽度
    if ((imgObj.width != 0) && (imgObj.height != 0))
      // 根据取得的图像高度和宽度设置弹出窗口的高度与宽度，并打开该窗口
      // 其中的增量 20 和 30 是设置的窗口边框与图片间的间隔量
      OpenFullSizeWindow(theURL,winName, ",width=" + (imgObj.width+20) + ",height=" + (imgObj.height+30));
    else
      // 因为通过 Image 对象动态装载图片，不可能立即得到图片的宽度和高度，所以每隔100毫秒重复调用检查
      setTimeout("checkImg('" + theURL + "','" + winName + "')", 100)
  }
}

function OpenFullSizeWindow(theURL,winName,features) {
  var aNewWin, sBaseCmd;
  // 弹出窗口外观参数
  sBaseCmd = "toolbar=no,location=no,status=no,menubar=no,scrollbars=no,resizable=no,left=100";
  // 调用是否来自 checkImg 
  if (features == null || features == ""){
    // 创建图像对象
    imgObj = new Image();
    // 设置图像源
    imgObj.src = theURL;
    // 开始获取图像大小
    checkImg(theURL, winName)
  }
  else{
    // 打开窗口
    aNewWin = window.open(theURL,winName, sBaseCmd + features);
    // 聚焦窗口
    aNewWin.focus();
  }
}


var tt='start';
var ii='start';
function turnit(ss,bb) {

  if (ss.style.display=="none") {
    if(tt!='start') tt.style.display="none";
    if(ii!='start') ii.src="";
    ss.style.display="";
    tt=ss;
    ii=bb;
    bb.src="";
  }
  else {
    ss.style.display="none"; 
    bb.src="";
  }
}

function openWindow(url) {
  popupWin = window.open(url, 'new_page', 'width=400,height=410,scrollbars')
}