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_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_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 MM_openBrWindow(theURL,winName,features) { //v2.0
window.open(theURL,winName,features);
}

function inputTagShowHide(id, image){
  disp = document.getElementById(id).style.display;
  if(disp == "block"){
    document.getElementById(id).style.display = "none";
    document.getElementById(image).src = "http://srv.cyberz.co.jp/hitchart.com/img_r_310.gif";
  }else{
    document.getElementById(id).style.display = "block";
    document.getElementById(image).src = "http://srv.cyberz.co.jp/hitchart.com/img_r_310.gif";
  }
  return false;
}


//blankにすると、新しくwindowを開きます
var target = "top";
function jump(){
  var url = document.announce.select.options[document.announce.select.selectedIndex].value;
  if(url != "" ){
    if(target == 'top'){
      top.location.href = url;
    }
    else if(target == 'blank'){
       window.open(url, 'window_name');
    }
    else if(target != ""){
      eval('parent.' + target + '.location.href = url');
    }
    else{
      location.href = url;
    }
  }
}