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_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_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];}
                 }
                 


//スクロールコントロール-------


/* USER_AGENT check start ------------------------------------------------ */
// NN4, NN5(Netscape 6+, Mozilla 1+?), IE4(IE4+), Unknown
g_USER_AGENT = getAgent();

// return NN4, NN5(Netscape 6+, Mozilla 1+?), IE4, IE5(IE5+), Unknown
function getAgent(){
  var userAgent = navigator.userAgent;
  var charIndex;
  var majorVersion;

  charIndex = userAgent.indexOf("MSIE");
  if(charIndex){
    majorVersion = userAgent.charAt(charIndex + 4 + 1);
    if(majorVersion > 4){
      return("IE5");
    }
    else if(majorVersion == 4){
      return("IE4");
    }
  }

  charIndex = userAgent.indexOf("Mozilla");
  majorVersion = userAgent.charAt(charIndex + 7 + 1);
  if(majorVersion > 4){
    return("NN5");
  }
  else if(majorVersion == 4){
    return("NN4");
  }

  return("Unknown");
}
/* USER_AGENT check end -------------------------------------------------- */

function getWindowYOffset(){
  if(g_USER_AGENT == "IE5" || g_USER_AGENT == "IE4"){
    return document.body.scrollTop;
  }else if(g_USER_AGENT == "NN5" || g_USER_AGENT == "NN4"){
    return window.pageYOffset;
  }else{
    return 0;
  }
}

var waitTimer;
function jumpTo(dstY, srcY, scrollRate, waitMillSec) {
  if(waitTimer){
    clearTimeout(waitTimer);
  }
  if( ! dstY || dstY < 0 ){
    dstY = 0;
  }
  if( ! srcY ){
    srcY = 0 + getWindowYOffset();
  }
  if( ! scrollRate ){
    scrollRate = 5;
  }
  if( ! waitMillSec ){
    waitMillSec = 20;
  }

  srcY += (dstY - getWindowYOffset()) / scrollRate;
  if(srcY < 0){
    srcY = 0;
  }
  posY = Math.floor(srcY);
  window.scrollTo(0, posY);

  if(posY != dstY){
    waitTimer = setTimeout("jumpTo("+ dstY +", "+ srcY +", "+ scrollRate +", "+ waitMillSec +")", waitMillSec);
  }
  else if(posY == dstY){
    clearTimeout(waitTimer);
  }
  else if(posY < 1){
    window.scroll(0, 0);
  }
}

function toTop(){
  jumpTo(0, 0, 7, 14);
}