/*侧边栏展开*/
var sb = 0;
var sba = 0;
var $ = function(i){ return document.getElementById(i); }
function mychg(m){
    if(sba==1) {
	sbb=$("lm"+m).style.display;
	$("lm"+m).style.display=sbb=="none"?"block":"none";
	$("father"+m).className=$("father"+m).className==""?"on":"";
	}
	else {
    if(sb!=0){ 
	$("lm"+sb).style.display="none";
	$("father"+sb).className="";
	}
    if(sb!=m){
        $("lm"+m).style.display="block";
		$("father"+m).className="on";
        sb=m;
    }
    else sb=0;
	}
}

function mychgall(num){
  for(i=1;i<num+1;i++)
  {
  $("lm"+i).style.display=sba==0?"block":"none";
  $("father"+i).className="on";
  }

  sba=!sba;
  sb=0;
}
//FAQ调用
function expandIt(num) {
  sbbfaq = $("page"+num).style.display;
  $("page"+num).style.display = sbbfaq=="none"?"block":"none";
}

function display(){
  var elements = new Array();
  for (var i = 0; i < arguments.length; i++) {
    var element = arguments[i];
    if (typeof element == 'string')
      element = document.getElementById(element);
	  element.style.display="";
  }
}

function hide() {
  var elements = new Array();
  for (var i = 0; i < arguments.length; i++) {
    var element = arguments[i];
    if (typeof element == 'string')
      element = document.getElementById(element);
	  element.style.display="none";
  }
}
/* * * * * * * * * * * * * * */
/* 实现 IE6 PNG 图片背景透明 */
/* * * * * * * * * * * * * * */
var Png =
{
   // 判断是否为IE及版本
   isIE : function()
   {
      var Version = navigator.appVersion;
      var intStart = Version.indexOf('MSIE') + 4;
      var Ver = Version.substring(intStart, intStart + 4);
      if (navigator.appName == 'Microsoft Internet Explorer' && parseFloat(Ver) == 6)
      {
         return true;
      }
      return false;
   }
   ,
   // 修正IE6 PNG 图片背景透明BUG。
   Correct : function()
   {
      for(var i = 0; i < document.images.length;
      i ++ )
      {
         var img = document.images[i];
         var LW = img.width;
         var LH = img.height;
         var imgName = img.src.toUpperCase();
         if (imgName.substring(imgName.length - 3, imgName.length) == 'PNG')
         {
            img.style.filter += 'progid:DXImageTransform.Microsoft.AlphaImageLoader(src=' + img.src + ', sizingmethod=scale);';
            img.src = 'http://image.91.com/yx91/images/0901/intro/space.gif';
            img.width = LW;
            img.height = LH;
         }
      }
   }
}
;

// 页面加载添加功能
Png.isIE() ? window.attachEvent('onload', Png.Correct) : null;