rollovers=function(off,on){img=document.getElementsByTagName("img");p=[];off_reg=new RegExp(off+"(\.[a-z]+$)","i");on_reg=new RegExp(on+"(\.[a-z]+$)","i");for(var x=0,i;i=img[x];x++){if(i.src.match(off_reg)){p[x]=new Image();p[x].src=i.src.replace(off_reg,on+"$1");i.onmouseover=function(){this.src=this.src.replace(off_reg,on+"$1");};i.onmouseout=function(){this.src=this.src.replace(on_reg,off+"$1");};};};};

window.onload = function(){
  /***
  * rollovers( オフ画像の拡張, オン画像の拡張 );
  ****/
  rollovers( "_o" , "_h" );
};




// for old Navigation  Ex. directory cadown,inquiry

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_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;
}