function slideXaxis(layName,x){ //レイヤ−X軸移動
  if(document.all) document.all(layName).style.pixelLeft=x  //IE4,5,6,Opera6用
  if(document.getElementById) document.getElementById(layName).style.left=x  //NN6,7用
  if(document.layers) document.layers[layName].left=x       //NN4用
}
var timeIDin, timeIDout;
var xLimit = -210;	//左端座標初期値
var xStep = 50;	//移動量
var xAxis = xLimit;
if(document.all || document.getElementById || document.layers){ //スタイル定義
  document.write('<style type="text/css">\n');
  document.write('a {text-decoration:none; }\n');
  document.write('#ipos { position:absolute; top:280px; left:'
+xLimit+'px; width:285 }\n');
  document.write('</style>\n');
}
function slideIn(){
  clearTimeout(timeIDout);
  if(xAxis < 0){
    xAxis += xStep; if(xAxis > 0) xAxis = 0;
    slideXaxis("ipos",xAxis)
    timeIDin = setTimeout("slideIn()",25);
  }
  else clearTimeout(timeIDin);
}
function slideOut(){
  clearTimeout(timeIDin);
  if(xAxis > xLimit){
    xAxis -= xStep; if(xAxis < xLimit) xAxis = xLimit;
    slideXaxis("ipos",xAxis)
    timeIDout = setTimeout("slideOut()",25);
  }
  else clearTimeout(timeIDout);
}