if(navigator.appName=='Netscape'){
  var naviPos=document.layers['navi'];
  var naviImg=document.layers['navi'].document.layers['activeNavi'].document.layers['Arrow'].document.images['naviArrow'];
  naviPos.document.layers['activeNavi'].left-=4;
  naviPos.document.layers['activeNavi'].top-=4;
  document.layers['navi'].document.layers['activeNavi'].document.layers['Arrow'].left+=4;
  document.layers['navi'].document.layers['activeNavi'].document.layers['Arrow'].top+=4;
}else{
  var naviPos=navi.style;
  var naviImg=document.images['naviArrow'];
}
var initMove=10;
var naviWait=2;
var naviClosePos=-144;
var naviOpenPos=0;
var naviOpenImg='./open.gif';
var naviCloseImg='./close.gif';

function navi_open(){
  var cookiepuss=document.cookie;
  var crumb=cookiepuss.indexOf('navi');
  if(crumb==-1){
    document.cookie='navi=1';
    waitID=setTimeout('navi_anim()',2000);
  }else{
    chip=cookiepuss.substring(crumb+8,crumb+9);
    if(chip=='1'){
      navi_goClose();
    }else{
      navi_goOpen();
    }
  }
}
function navi_anim(){
  if(parseInt(naviPos.left) <naviOpenPos){
    naviPos.left=parseInt(naviPos.left)+initMove;
    naviWaitID=setTimeout('navi_anim()',naviWait);
  } else if(parseInt(naviPos.left)>=naviOpenPos){
    naviPos.left=naviOpenPos;
    naviImg.src=naviCloseImg;
  }
}
function navi_click(){
  if(parseInt(naviPos.left)==naviOpenPos){
    navi_goOpen();
  }else{
    navi_goClose();
  }
}
function navi_goOpen(){
  naviPos.left=naviClosePos;
  naviImg.src=naviOpenImg;
  document.cookie='navi=0';
}
function navi_goClose(){
  naviPos.left=naviOpenPos;
  naviImg.src=naviCloseImg;
  document.cookie='navi=1';
}