myfloat = new Array(			//飘广告数据，直接插入HTML代码多省事
 "<a href=/xinwen/show.asp?i=171 ><img src=/images/ad_open.jpg border=0></a>"

  );

  function mObject(oName, fname){
    var step    = 2;
    var delay   = 80;
    var width   = document.body.clientWidth;
    var height  = document.body.clientHeight;
    var Hoffset = oName.offsetHeight;
    var Woffset = oName.offsetWidth;
    var xPos    = Math.round(Math.random()*width);
    var yPos    = Math.round(Math.random()*height);
    var yon     = Math.round(Math.random());
    var xon     = Math.round(Math.random());
    var pause   = true;
    var interval;
    oName.style.top = yPos;
    this.changePos = function(){
      oName.style.left = xPos + document.body.scrollLeft;
      oName.style.top  = yPos + document.body.scrollTop;
      if (yon) {
        yPos = yPos + step;
      }
      else {
        yPos = yPos - step;
      }
      if (yPos < 0) {
        yon = 1;
        yPos = 0;
      }
      if (yPos >= (height - Hoffset)) {
        yon = 0;
        yPos = (height - Hoffset);
      }
      if (xon) {
        xPos = xPos + step;
      }
      else {
        xPos = xPos - step;
      }
      if (xPos < 0) {
        xon = 1;
        xPos = 0;
      }
      if (xPos >= (width - Woffset)) {
        xon = 0;
        xPos = (width - Woffset);
      }
    }
    this.start = function(){
      oName.visibility = "visible";
      setInterval(fname+".changePos()", delay);
    }

    this.start();
  }

  for(var i=0;i<myfloat.length;i++){
    document.write('<div id=FloatDiv'+i+' style="POSITION: absolute">'+myfloat[i]+'</div>');
    var cmd = 'oFloatDiv' + i + ' = new mObject(FloatDiv'+i+',"oFloatDiv'+i+'");';
    eval(cmd);
  }